Tryton client 5.0.38 not working with federation.gnuhealth.org

Dear all,
the tryton client 5.0.38 under Windows 10 is not working with federation.gnuhealth.org. It accesses the database and accepts the password (user admin, pw gnusolidario), but does not display text or icons. 5.0.37 works. Am I doing something wrong?
Thanks a lot!

The Issue 10446: Duplicating with GTK-Client stays on the original record - Tryton issue tracker was wrongly back-ported. This should be fixed with tryton: ee43feb8166c