Reproduce:XnView MP Windows
Version 0.93.1 64bits (Mar 6 2019)
- Create 3 control point in curves
 - Drag them out of the box in turn
 - The curve will disappear, and the software will crash.
 
https://1drv.ms/u/s!AGFzz3_4XoK_gtZb
Moderators: helmut, xnview, Dreamer
Reproduce:XnView MP Windows
Version 0.93.1 64bits (Mar 6 2019)