diff --git a/src/components/emoticonsDropdown/tabs/stickers.ts b/src/components/emoticonsDropdown/tabs/stickers.ts
index ec0fd575..cfd72352 100644
--- a/src/components/emoticonsDropdown/tabs/stickers.ts
+++ b/src/components/emoticonsDropdown/tabs/stickers.ts
@@ -341,7 +341,7 @@ export default class StickersTab implements EmoticonsTab {
       return;
     }
 
-    let div = this.recentDiv.querySelector(`[data-doc-i-d="${doc.id}"]`);
+    let div = this.recentDiv.querySelector(`[data-doc-id="${doc.id}"]`);
     if(!div) {
       div = this.superStickerRenderer.renderSticker(doc);
     }
diff --git a/src/lib/appManagers/appMessagesManager.ts b/src/lib/appManagers/appMessagesManager.ts
index 48e66dd6..920a5f36 100644
--- a/src/lib/appManagers/appMessagesManager.ts
+++ b/src/lib/appManagers/appMessagesManager.ts
@@ -1,10 +1,11 @@
+import { LazyLoadQueueBase } from "../../components/lazyLoadQueue";
 import ProgressivePreloader from "../../components/preloader";
 import { CancellablePromise, deferredPromise } from "../../helpers/cancellablePromise";
 import { tsNow } from "../../helpers/date";
 import { copy, defineNotNumerableProperties, getObjectKeysAndSort } from "../../helpers/object";
 import { randomLong } from "../../helpers/random";
 import { splitStringByLength, limitSymbols } from "../../helpers/string";
-import { Dialog as MTDialog, DialogPeer, DocumentAttribute, InputMedia, InputMessage, InputNotifyPeer, InputPeerNotifySettings, InputSingleMedia, Message, MessageAction, MessageEntity, MessageReplies, MessageReplyHeader, MessagesDialogs, MessagesFilter, MessagesMessages, MessagesPeerDialogs, MethodDeclMap, NotifyPeer, PhotoSize, SendMessageAction, Update } from "../../layer";
+import { Dialog as MTDialog, DialogPeer, DocumentAttribute, InputMedia, InputMessage, InputNotifyPeer, InputPeerNotifySettings, InputSingleMedia, Message, MessageAction, MessageEntity, MessageMedia, MessageReplies, MessageReplyHeader, MessagesDialogs, MessagesFilter, MessagesMessages, MessagesPeerDialogs, MethodDeclMap, NotifyPeer, PhotoSize, SendMessageAction, Update } from "../../layer";
 import { InvokeApiOptions } from "../../types";
 import { langPack } from "../langPack";
 import { logger, LogLevels } from "../logger";
@@ -133,6 +134,8 @@ export class AppMessagesManager {
       }>
     }
   } = {};
+  
+  public sendSmthLazyLoadQueue = new LazyLoadQueueBase(1);
 
   public needSingleMessages: {[peerId: string]: number[]} = {};
   private fetchSingleMessagesPromise: Promise<void> = null;
@@ -510,11 +513,11 @@ export class AppMessagesManager {
         delete message.error;
       }
       rootScope.broadcast('messages_pending');
-    }
+    };
 
-    message.send = () =>  {
+    message.send = () => {
       toggleError(false);
-      const sentRequestOptions: any = {};
+      const sentRequestOptions: InvokeApiOptions = {};
       if(this.pendingAfterMsgs[peerId]) {
         sentRequestOptions.afterMessageId = this.pendingAfterMsgs[peerId].messageId;
       }
@@ -543,8 +546,9 @@ export class AppMessagesManager {
         }, sentRequestOptions);
       }
 
-      // this.log(flags, entities)
+      //this.log('sendText', message.mid);
       apiPromise.then((updates: any) => {
+        //this.log('sendText sent', message.mid);
         if(updates._ == 'updateShortSentMessage') {
           message.date = updates.date;
           message.id = updates.id;
@@ -834,9 +838,7 @@ export class AppMessagesManager {
         
         sentDeferred.resolve(inputMedia);
       } else if(file instanceof File || file instanceof Blob) {
-        const deferred = deferredPromise<void>();
-
-        this.sendFilePromise.then(() => {
+        const load = () => {
           if(!uploaded || message.error) {
             uploaded = false;
             uploadPromise = appDownloadManager.upload(file);
@@ -881,17 +883,22 @@ export class AppMessagesManager {
             if(err.name === 'AbortError' && !uploaded) {
               this.log('cancelling upload', media);
 
-              deferred.resolve();
               sentDeferred.reject(err);
               this.cancelPendingMessage(randomIdS);
               this.setTyping(peerId, 'sendMessageCancelAction');
             }
           });
 
-          uploadPromise.finally(deferred.resolve);
-        });
+          return sentDeferred;
+        };
 
-        this.sendFilePromise = deferred;
+        if(options.isGroupedItem) {
+          load();
+        } else {
+          this.sendSmthLazyLoadQueue.push({
+            load
+          });
+        }
       }
 
       return sentDeferred;
@@ -1021,28 +1028,31 @@ export class AppMessagesManager {
     const invoke = (multiMedia: any[]) => {
       this.setTyping(peerId, 'sendMessageCancelAction');
 
-      return apiManager.invokeApi('messages.sendMultiMedia', {
-        peer: inputPeer,
-        multi_media: multiMedia,
-        reply_to_msg_id: replyToMsgId,
-        schedule_date: options.scheduleDate,
-        silent: options.silent
-      }).then((updates) => {
-        apiUpdatesManager.processUpdateMessage(updates);
-      }, (error) => {
-        messages.forEach(message => toggleError(message, true));
+      this.sendSmthLazyLoadQueue.push({
+        load: () => {
+          return apiManager.invokeApi('messages.sendMultiMedia', {
+            peer: inputPeer,
+            multi_media: multiMedia,
+            reply_to_msg_id: replyToMsgId,
+            schedule_date: options.scheduleDate,
+            silent: options.silent
+          }).then((updates) => {
+            apiUpdatesManager.processUpdateMessage(updates);
+          }, (error) => {
+            messages.forEach(message => toggleError(message, true));
+          });
+        }
       });
     };
 
-    const inputs: InputSingleMedia[] = [];
-    for(const message of messages) {
-      const inputMedia: InputMedia = await message.send();
-      this.log('sendAlbum uploaded item:', inputMedia);
-
-      await apiManager.invokeApi('messages.uploadMedia', {
-        peer: inputPeer,
-        media: inputMedia
-      }).then(messageMedia => {
+    const promises: Promise<InputSingleMedia>[] = messages.map(message => {
+      return (message.send() as Promise<InputMedia>).then((inputMedia: InputMedia) => {
+        return apiManager.invokeApi('messages.uploadMedia', {
+          peer: inputPeer,
+          media: inputMedia
+        });
+      })
+      .then(messageMedia => {
         let inputMedia: any;
         if(messageMedia._ == 'messageMediaPhoto') {
           const photo = appPhotosManager.savePhoto(messageMedia.photo);
@@ -1052,25 +1062,30 @@ export class AppMessagesManager {
           inputMedia = appDocsManager.getMediaInput(doc);
         }
 
-        inputs.push({
+        const inputSingleMedia: InputSingleMedia = {
           _: 'inputSingleMedia',
           media: inputMedia,
           random_id: message.random_id,
           message: caption,
           entities
-        });
+        };
 
         // * only 1 caption for all inputs
         if(caption) {
           caption = '';
           entities = [];
         }
-      }, () => {
+
+        return inputSingleMedia;
+      }).catch((err: any) => {
         toggleError(message, true);
+        throw err;
       });
-    }
+    });
 
-    invoke(inputs);
+    Promise.all(promises).then(inputs => {
+      invoke(inputs);
+    });
   }
 
   public sendOther(peerId: number, inputMedia: any, options: Partial<{
@@ -1638,7 +1653,7 @@ export class AppMessagesManager {
       schedule_date: options.scheduleDate
     }, sentRequestOptions).then((updates) => {
       apiUpdatesManager.processUpdateMessage(updates);
-    }, () => {}).then(() => {
+    }).finally(() => {
       if(this.pendingAfterMsgs[peerId] === sentRequestOptions) {
         delete this.pendingAfterMsgs[peerId];
       }
diff --git a/src/lib/mtproto/apiManager.ts b/src/lib/mtproto/apiManager.ts
index a3ebde45..5335c3a6 100644
--- a/src/lib/mtproto/apiManager.ts
+++ b/src/lib/mtproto/apiManager.ts
@@ -253,7 +253,7 @@ export class ApiManager {
 
     const deferred = deferredPromise<MethodDeclMap[T]['res']>();
 
-    const afterMessageIdTemp = options.afterMessageId;
+    let afterMessageIdTemp = options.afterMessageId;
     if(afterMessageIdTemp) {
       deferred.finally(() => {
         delete this.afterMessageTempIds[afterMessageIdTemp];
@@ -325,7 +325,7 @@ export class ApiManager {
 
       return promise.then(deferred.resolve, (error: ApiError) => {
         //if(!options.ignoreErrors) {
-        if(error.type != 'FILE_REFERENCE_EXPIRED') {
+        if(error.type != 'FILE_REFERENCE_EXPIRED' && error.type !== 'MSG_WAIT_FAILED') {
           this.log.error('Error', error.code, error.type, this.baseDcId, dcId, method, params);
         }
         
@@ -377,7 +377,15 @@ export class ApiManager {
           setTimeout(() => {
             performRequest(cachedNetworker);
           }, waitTime/* (waitTime + 5) */ * 1000); // 03.02.2020
-        } else if(!options.rawError && (error.code == 500 || error.type == 'MSG_WAIT_FAILED')) {
+        } else if(!options.rawError && error.code == 500) {
+          if(error.type === 'MSG_WAIT_FAILED') {
+            afterMessageIdTemp = undefined;
+            delete options.afterMessageId;
+            delete this.afterMessageTempIds[options.prepareTempMessageId];
+            performRequest(cachedNetworker);
+            return;
+          }
+
           const now = Date.now();
           if(options.stopTime) {
             if(now >= options.stopTime) {
diff --git a/src/scss/partials/_document.scss b/src/scss/partials/_document.scss
index d59bc6e9..1a819160 100644
--- a/src/scss/partials/_document.scss
+++ b/src/scss/partials/_document.scss
@@ -71,7 +71,7 @@
 
   &.document-with-thumb {
     .document-ico {
-      background: #000;
+      background: #fff;
       border-radius: $border-radius;
 
       .document-thumb {