Max. amount of files in file field

Hi,

this one Limits on apps, fields, and automations | Tape Help Center says that"

File field: 200 files attached to a single file field; maximum file size is 100MB

I have 78 small files from 2 KB to 2.1 MB.
I tried to attach all of them at once which didn’t work.
I tried to add them in packs of 10 which didn’t work.

The max. amount of files I’m able to attach is 50, no matter what I’m doing.