File corrupted when upload?

recently. when I print a big file, it stuck. for the first time I have to dissemble the feeder to unstuck it. Later I print another profile, work great. Then I print the file again by choosing the history, and it stuck at the exactly the same location! Then I have to fix it again! Now I print other files fine.
So my guess is, when I upload the big file, something get corrupted. I wonder if there is MD5 hash check after the upload? If not, Bambu should probably add it.

Might be a weird extrusion/retraction rather than corruption

but it stopped in the same position twice. printing other things without any issue. I can’t download the profile from my history. no way to reproduce it. don’t want to waste filament to try again. Maybe bambu team and review the print profile as needed.

You should be able to take the microSD card out if you want to

thanks. I didn’t know the history file is on the sd card. will check.
Won’t my sd card get full? or get corrupted?

I slice it again and it stuck again! something wrong with the model? Holy ■■■■

Probably a strange extrusion like I said.