DO12 - Crashes - Rename matching filenames as one

When I choose the option Rename matching filenames as one while having folders selected, DO12 crashes. See error below.
If I have only files selected, I can check the box without any problem.

I can't reproduce this so far, at least not just by selecting a folder and turning on the option.

What are the other details of your Rename dialog setup when it happens? Could you show a screenshot of the full dialog immediately before you turn the option on?

There should be a crash dump created. If there is, please zip and email it to as it should tell us where in the code the crash is happening.

Thank you, that has been fixed for the next update.

The cause is actually if a file or folder name is turned into nothing at all (0 length string) and the "rename matching filenames as one" option is on.