Glitch keep disconnecting mid-upload. Other similar pages upload without problems

Hi there

I used glitch to train spelling in class in a treasurehunt.
I use QR-codes to glitch pages and have a teacher module to send different words read out loud + sometimes an image.

I did an update and this one had nu issues:
QRcode site3v2
Some other pages with exactly the same cody, but other sound- and image files,
fail to upload:
QRcode site3v2

For some reason when uploading, I see the code.
After a couple of seconds the glitch site says ‘reconnecting’.
Then I am left with a page without any code. It’s just blank.

Any tips?