Filmstrip blank in darkroom

Thanks for the reply. So I found where it should go, the export line, then added the other two, still nothing.

Are you on Linux?
Start a terminal.
Type these commands:

cd ~/.config/darktable
grep strip darktablerc

What is the reply?

Windows 10

Then

find "strip" darktablerc

The cd command will also be a bit different.

I am having the same problem with Windows 11 and Darktable 4.8.1.
Could someone tell me where I would find “darktablerc” so that I can attempt to try the solution above.

Try here:

C:\Users[YourUserName]\AppData\Local\darktable

Thanks. This worked, and the solution above solved the problem.
The reason I could not find “darktablerc” was that AppData was a hidden file. After making hidden files visible, I was able to find the folder; “darktablerc” also was visible to a file search.