Real-time kerel not detected on patched 6.12

I've compiled Linux 6.12 with Full real-time enabled, but somehow it's not detected as real-time by LinuxCNC. When I set the priority manually at RT via "sudo htop" and press I, the latency is low so I'm sure that it's compiled correctly.
Perhaps the detection method need to be changed?

It's not only on Orange Pi, also on x86, both mainline Linux so it would be nice if you could set the title back again.

As you can see in the screenshot it's configured with fully preempted. Are you sure that this kernel parameter makes it real-time? Isn't this only to make it low latency when the kernel is configured is dynamic?

In the other terminal you can read "PREEMPT_,RT".

In the screenshot of the whole screen (where I put the rtapi processes manually on the FIFO scheduler with rt priority) you can see from the result that it's definitely a realtime kernel, but somehow just not detected correctly since 6.12.
Do I really need to send a proof that it's the same with x86?

It's a bit annoying that the title got changed to something that attracts less attention, while it's not even limited to only that device/architecture.

Since you didn't reply on it but you did reply on other topics in this section I assumed that you didn't read it. So by trying to prevent of getting a lot of noise in this topic (didn't work) I pushed the report button.

Anyway thanks for the link, just tried the kernel from the link and that one works correctly indeed. Still a mystery for me while mine doesn't get detected, because rhey're compiled with fully preemptible (realtime) in menuconfig.

Why compiling myself? Because I use it on a pc with Fedora and an Orange Pi 5. I'll dig further into it.