NULL pointer exception when trying to copy task

Trying to copy and paste a task returns a NULL pointer exception. Application needs a restart afterwards.
Version 3.2.3240

Please post the contents of the log. Help > View log

Copy of task appears in left list, but not in gantt.
Needs to be shut down then (without saving).

Log that appears in the lower right corner:
log.txt (282,9 KB)