Do you mean that there are no entries in the drop down menu as:
If that is the case, it works like this:
A new Gimp installation when first run creates a Gimp user profile. For a Mac something like /Users/MyName/Library/Application Support/Gimp/2.10 there is a bit about it here: https://www.gimp.org/tutorials/GIMPProfile/
One of the files copied over from that...etc/gimp/2.0/ folder to your user profile is templaterc. Check that it is there. Check that it is not a zero size file. It should be about 12 KB in size. It is just a text file, you can view it in a text editor.
Gimp does re-write it when you exit so maybe it got erased.
I will attach a zipped file in case you are missing it. Unzip it and copy into your user profile.
Sorry, I do not have a working MacOS (VM) anymore, not many Mac users around this forum.
If that is the case, it works like this:
A new Gimp installation when first run creates a Gimp user profile. For a Mac something like /Users/MyName/Library/Application Support/Gimp/2.10 there is a bit about it here: https://www.gimp.org/tutorials/GIMPProfile/
One of the files copied over from that...etc/gimp/2.0/ folder to your user profile is templaterc. Check that it is there. Check that it is not a zero size file. It should be about 12 KB in size. It is just a text file, you can view it in a text editor.
Gimp does re-write it when you exit so maybe it got erased.
I will attach a zipped file in case you are missing it. Unzip it and copy into your user profile.
Sorry, I do not have a working MacOS (VM) anymore, not many Mac users around this forum.