Anki 24.04 beta/RC

Hi, I have encountered a small bug when using the beta. I can’t reproduce it consistently and don’t really know why it happens.
The first time it happened at idle when I was doing something else on my pc, and another time when I was using the Ankimote (149004221) addon (just scanned the QR code).

My debug infos :
Anki 24.04 (b84fce48) (ao)
Python 3.9.18 Qt 6.6.2 PyQt 6.6.1
Platform: Linux-6.8.1-arch1-1-x86_64-with-glibc2.39

Traceback (most recent call last):
File “aqt.webview”, line 628, in handler
File “aqt.toolbar”, line 91, in _onHeight
TypeError: int() argument must be a string, a bytes-like object or a number, not ‘NoneType’

It doesn’t really affect how I can use anki.
However, I saw that when I closed anki, it kept running in my application manager. And it made it impossible to reopen unless I killed it manually.
(This problem is also inconsistent, I thought it was related to the bug I mentioned, but it can happen even when I don’t have it).

Hope I gave the informations needed, have a good day