Target Info System BUG

[ilovegreendays 0]

Hi, I have implemented the Target Info System, everything is fine, I have only this annoying visual bug.

If I open the info with a monster with no drop, it is all okay, but if I open a monster with 5/6 items that has the "scroll down thing" and then i click again on a monster with no drop I have this visual bug. Anyone know how I can fix it? Thank you

 

https://imgur.com/a/g09l5Zm

https://imgur.com/gm1oLGW

 

Sysser:

0827 11:38:19693 ::   File "ui.py", line 1506, in OnMove

0827 11:38:19693 ::   File "ui.py", line 88, in __call__

0827 11:38:19693 ::   File "ui.py", line 70, in __call__

0827 11:38:19693 ::   File "ui.py", line 2495, in OnMove

0827 11:38:19693 ::   File "ui.py", line 88, in __call__

0827 11:38:19693 ::   File "ui.py", line 70, in __call__

0827 11:38:19693 ::   File "ui.py", line 720, in __OnScroll

0827 11:38:19693 :: ReferenceError
0827 11:38:19693 :: : 
0827 11:38:19693 :: weakly-referenced object no longer exists
0827 11:38:19693 :: 

 

I compare with another clients with that system and i cant see where is the error at.. please help