Fix retry_decrypting_events()

src/backend/matrix_client.py

@@ -968,11 +968,12 @@ class MatrixClient(nio.AsyncClient):
 
         for sync_id, model in self.models.items():
             if not (isinstance(sync_id, tuple) and
+                    len(sync_id) == 3 and
                     sync_id[0] == self.user_id and
                     sync_id[2] == "events"):
                 continue
 
-            _, _, room_id = sync_id
+            _, room_id, _ = sync_id
 
             for ev in model.values():
                 room = self.all_rooms[room_id]

src/gui/Dialogs/ImportKeys.qml

@@ -36,7 +36,9 @@ HFileDialogOpener {
                 importing = false
                 callback(true)
 
-            }, (type, args) => {
+            }, (type, args, error, traceback, uuid) => {
+                let unknown = false
+
                 callback(
                     type === "EncryptionError" ?
                     false :
@@ -53,8 +55,13 @@ HFileDialogOpener {
                     type === "PermissionError" ?
                     qsTr("No permission to read this file") :
 
-                    qsTr("Unknown error: %1 - %2").arg(type).arg(args)
+                    (
+                        unknown = true,
+                        qsTr("Unknown error: %1 - %2").arg(type).arg(args)
+                    )
                 )
+
+                if (unknown) utils.showError(type, traceback, uuid)
             })
         }
     }