I had a file named: #1010021.JPG
I had a user defined view with only FileCreateDate (I removed others for testing)
When I open the folder with this file and switch to the custom view, I get the error: "List index out of bounds (0)".
Removing the # from the front of the file name prevents the problem.
Also, while the error is being displayed, you cannot exit the program. You must first switch to a valid view.
The ExiftoolGUI hasn't had support in nearly 10 years. The author abandoned it and never released the code. See the ExifToolGUI currently unsupported thread on the exiftool forums.
There is an alternative java based GUI for exiftool you might try. It is still receiving support by its author. You can find details here.
Last edit: StarGeek 2022-03-02
ExifToolGUI is not part of this project.