Possible resource limitation for very large import files

[Docmale]

Describe the bug
Error:

I got the error with two files with 299 and 300 entries. When I tried again with 150 entries and later with 300 entries, I could no longer reproduce the behaviour. The error only occurs again when I start another generation in parallel. So it has something to do with resources?

[Docmale]

The effect occurs with Freinet and standard CSV import

[ztefanie]

Does not occur every time, just sometimes.

[f1sh1918]

created cards from csv (300 entries) in two browser tabs in parallel. Couldn't reproduce the error with chrome