@JonB Same applies to flies :-D

Okey thank u

Hi, @SGaist @Kent-Dorfman I tried to google "QUdpsocket priority", I got many result that discribe my problem but without soultion. Many peopele have the same problem. My felling is there is some problem. But i dont have enough knowledge to debug it.

I should probably mention that i'm writing this in PyQt5 and therefor tried not to mention the code too much. Since the first thing you mention is the code, does that mean that you think architecturally it should work fine with a standardItemModel? I can always code my way around the crash, but i'm more interested in good architecture for this problem. Do you need more information about the data? Thanks for the reply :)

The most compatible with qt is GE Predix (https://www.predix.io/) - https://github.com/IndeemaSoftware/QPredix