Gimp will not open in RawTherapee 5.8

Software
1

I cannot open Gimp 2.10.18 in RawTherapee 5.8.
Gimp is set up as directed by the program pointing to the bin directory and nothing happens.
(“C:\Program Files\GIMP 2\bin\gimp-2.10.exe”)

Photoshop Elements 2020 is set up in the custom command line and works beautifully.

Can the unused Photoshop slot be used for anything other than Photoshop?

2

You can set the slot to whatever you’d like.