About the failure while simplifying

[zhuyu-cs]

Hello, daquanxian dalao,
I'm the one who has asked the issue by email. Lat time, you helped me with your own process and send the correct model to me. But I meet this problem again, so I wanna know how to sovle this throughly！

Thanks！

[zhuyu-cs]

By now, my bro find that all the classification branch‘ weight in FPN are all wrong(too large). But we still do not know what causes this problem.
Like this :

[zhuyu-cs]

We have found that the problem is caused by SyncBN, maybe this op is not normal. : ) thanks for your work!