No folder export to Files App in DTTG 3

Exporting a folder via Drag’n’Drop results in an error message. Is it prevented by design (iPadOS), or by intention, or by a bug?

Same question here: In the DTTG3 settings/security, is locking set to immediately, and does changing this setting make a difference?

This isn’t a bug. The groups don’t exist in the filesystem therefore they can’t be dragged into other applications, not just

It works in DTTG 2. Therefore I presumed it will in v3, too.

Interesting… @eboehnisch, this appears to be a regression. I confirmed it worked in 2.x.