STR: Select some file Cut it: Ctrl+X Move this file somewhere to the bookmark Press Ctrl+V Crash!
Created attachment 7468 Patch Easy fix, please check if it works for you before I push.
Created attachment 7469 Updated patch Updated patch...
I believe it works
Andre Miranda referenced this bugreport in commit ec112bcbf8f73d95fe38887ca4b1201a56963a40 Fix crash on unavailable file move copy (Bug #14056) https://git.xfce.org/xfce/thunar/commit?id=ec112bcbf8f73d95fe38887ca4b1201a56963a40
Andre Miranda referenced this bugreport in commit dfcb3d73ff4dbcce21575b74ff5ca9949c7d7e39 Fix crash on unavailable file move copy (Bug #14056) https://git.xfce.org/xfce/thunar/commit?id=dfcb3d73ff4dbcce21575b74ff5ca9949c7d7e39
Pushed to master and xfce-4.12 branches, will be available in 1.7.1 and 1.6.14 releases.