Github doesn't show latest commits - bug?

I want to see the latest commits on a branch. I’ve read that the way to do this in is to use the "Compare and Pull Request"feature. But this isn’t working for me. If I go to GitHub - Duet3D/RepRapFirmware: OO C++ RepRap Firmware then I see this:

This correctly shows that I have made recent commits. But if I then click on the “Compare and Pull Request” button then I see this:

[I tried to post an image here, but I get the message **Sorry, new users can only put one embedded media item in a post.**]

Those commits listed are ancient! I have made many tens of commits since then. Is this a bug? If not, what am I doing wrong?

This is the image that the forum would not let me upload in my original post (how STUPID is that! I’ve had a Github account for many years!):

In compare view commits are listed oldest to newest, scroll to the bottom and you’ll see your Jan 23/24 stuff.

Personally, I tend to switch branches and then click the :clock4: commits link at the right:

To get to a commits view: