BTT 3.508 (1646) crash when incomplete action triggered

I was checking this problem with keybard shortcut but it should be replicable in any scenario.
When user will set action Paste Items and will not set any value in "Paste items at positions" and will set "Paste as plain text" then triggering action crashes BTT.

In my opinion omitting of item number should be automatically treated by BTT as "newest item in clipboard"