Cant drag 'n drop in XDMCP remote session claws-mail

[Fog_Watch]

Hello,

When using claws-mail locally I can drag an email and drop it into a folder. When the claws-mail is used on a remote session (XDMCP) I can drag the email, but it doesn't drop. I used to be able to, but not now, and drag and drop still works with emelfm2 and gimp. Why can't I drag and drop in an XDMCP remote session with claws-mail?

[Fog_Watch]

Drag 'n drop doesn't work on my remote session with version 3.17.6 either.