Thunar 1.6.11 included on Devuan ASCII has a bug that hangs Thunar constantly.

The bug was reported here : https://bugzilla.xfce.org/show_bug.cgi?id=13481

And fixed in Thunar 1.6.12 with this patch : https://git.xfce.org/xfce/thunar/commit/?id=4dd549db77838c9345f10a72f10e705f8ae327d4

Thanks for Devuan!