Bernhard Fritsch

Yes, this is the case of a editing objects on a relation (child). The QRCode function is inside a vector layer (child) related to a geometryless table (parent) and it...

Thanks a lot, seems to work perfectly!

Yes, I posted a comment and deleted it myself. I thought I had updated QField via Playstore and the error still exists, but apparently I did not update QField (2.4...

Ah, ok. Thanks.