There is an issue with the version 14.0.16136.0.
Ifyou select some tracks and select Rename Files the dialog box appears as normal.
However if you then decide to choose a different rename template, the moment the template is selected the application freezes for a few seconds and then dumps you directly to the ddesktop with no errors.
Crash dump file has been attached
Could it be that one of your templates contain a forward slash (/) ?
We had a similar problem reported.
We have tried to reproduce this issue, but during our tests it worked as it should.
Some additional questions:
1) Does this happen for any template you select or for all?
2) Do you have Files or Folders preview open?
3) When the crash occurs, will Helium just terminate or will it show an error dialog which allows you to report the crash? If so, can you please fill in the form?
Thanks for the update Colin.
We will try to reproduce this issue based on this new information.