GD Backend Editor WPML problems

Dear GD support team,

while trying to use the GD backend editor to change some listing details I found out that the backend editor has no entries any more within. If I use the frontend editor the listing details are there to proceed with changes.

I guess an update of gd or WPML does cause this problem, because dropping WPML in plugins_off folder then the details are there.

Screenshots:
Backend Listing Editor > https://www.screencast.com/t/GCdhGBLZF
Backend Listing Editor URL

Frontend Listing Editor > https://www.screencast.com/t/MyMGTWjxr
Frontend Listing Editor URL

I am looking forward to your help.
Best, Alex