Sendbird UIKit for Android: @ mention doesn't work properly

[Sergey_Kudryavtsev]

In the Android app (UIKit for Android), we have this issue:
If the user types @ in the text box, the list with users appears, but once the user types the first letter of the name of the users from the list, the list of the users disappears from the screen.
Expected behaviour:
When the user types @, they should see the list with the users’ names, and if the user types the first letter of any of the users from the list, they should see that list filtered accordingly. It seems MentionWatcher doesn’t work properly.
The iOS version of the UIKit works correctly.
The UIKit version we use is 3.22.0