Bug: Small Black Line on Bottom-Left Corner of Pitch & Cannot Place Substitutes

Hello EA team,

​I am experiencing two ongoing technical issues with FC Mobile:

​1. Persistent Small Black Line (Graphical Bug)

​A small, black line appears consistently on the bottom-left corner of the pitch during matches and in the lineup screen. (I have attached a screenshot to show this.)

​This bug has been present for a long time.

​Troubleshooting attempts: I have already tried clearing the app cache/data, updating the game and my phone's operating system, and checking graphics settings (Game Booster) without success. 

2. Cannot Place Players into Substitute Slots (Lineup Management Bug)

​I am currently unable to drag and place players from the reserves list into any of the empty substitute slots on my main lineup screen.

​The slots appear to be available, but the game does not register the placement of the backup player.

​Device Information sm-s711b/Ds

​Device Model: Samsung  Galaxy S23Fe

​Operating System: Android 16

​One UI Version: 8.0

​Game Version: 26.1.01