My flex app crash with last SDK

[pierrehub2b]

Hello,
I have a serious issue with the last Flex SDK (51.2.2.5) but no problem if I build my application with a previous sdk (51.1.3.3).

The crash happen when I use my application but there is no logs or error message in Flex, only in the event logs of Windows.

Can you give me some points to check to try to find the issue with the last Flex SDK ?

Thnak you