Launch configurations not appearing anymore after Eclipse update with Quarkus

Question

I'm using Quarkus 3.5.3, and we had a couple of problems with Eclipse after the update. So I installed Eclipse 2023-12 and added the Quarkus Tools (4.29.0.Final, no newer version was offered by the Eclipse Marketplace).

Now however, my launch configurations for building with Maven (m2 plugin) don't appear anymore. I mean, I can right-click on a .launch file and launch it with Run As. But if I right-click on the project and choose Run As, the launch configurations don't appear. To be more precise, I just get Maven build..., as if I didn't have any m2 launch configurations. The same goes for the keyboard shortcut Shift+Alt+X: If I choose M (for Maven), nothing happens.

Not being able to use the keyboard shortcut means a lot of work over time :-)

It was still working with Eclipse 2023-06 (and still is for my JEE Eclipse). So, does anyone have an idea? Am I doing something wrong? Is this a bug?

Thanks for any information...

Here's a screenshot - I do see my successfully started m2 launch configurations (starting with number 9). Still no Maven build though.