Mogan stops working

I work with windows 11 I have updated windows to the latest version yesterday and now mogan is not operative anymore:

I also tried and unistall the last texmacs buid distributed for testing and restore the official texmacs version.

Mogan opens a small window at top left corner and finally collapses
Mogan research just does not open

I guess something may have changed in my windows installation.

However texmacs keeps working as always

I`ll be glad to receive any suggestion

Regards and thanks in advance

Maybe only @darcy knows what is happening.