Update
Fix bug found by Potato
Potato
Thanks, it really need to set the target position at a very special tick.
The concept of triggering "On MoveTo HIT TARGET" is that -
the moveTo behavior set the instance to target position, it means that this instance try to move from current position to target position.
And the "On MoveTo HIT TARGET" will be triggered next tick since the instance has already at target position.
If the target had been changed between these two ticks at event sheet, it will cause the bug. So I check the target position again before "On MoveTo HIT TARGET" triggered.