Hi, I've had this externaldragdrop.py script, that I've been using for a while now and after upgrading to houdini 18.5, I started getting this popup prompt, that says:

Save changes to “current file.hip” before clearing all contents.

When I choose “Cancel”, the script does exactly what it's supposed to, but I'm at a loss as to what might be causing this prompt.
Has anyone come across this issue? Any idea, where I might start troubleshooting?

Also, the Python3 versions of houdini seem to ignore the externaldragdrop.py script altogether.

Cheers,
Ivan