Hello, if I try anything in parallel with the latest 11.2-update of Mathematica, it tells me

LaunchKernels::unicore: The default parallel kernel configuration does not launch any kernels on a single-core machine. Use LaunchKernels[n] to launch n kernels anyway.

ParallelTable::nopar: No parallel kernels available; proceeding with sequential evaluation.ParallelTable::nopar: No parallel kernels available; proceeding with sequential evaluation.

But why? Never have read this before. Singlecore? Its a Pi 3...shouldn't it be 'quadcore'? Why do I no have to activate kernels manually now, what is wrong here?

How can I set 4 kerrnels as standard / permanent, so that I not have to do that manually every time again - as it was before the update?

Support online does not help me much:

to access the Parallel Kernel Configuration menu, select the menu item Evaluation ► Parallel Kernel Configuration

but there is no 'Parallel Kernel Config' here in my menu,

Edit: I also tried to add 3 more named Local1-3 in Evaluation -> Kernel Config -> add, but that does not work. I see in the taskmanager that theyre started on startup automatically, but wont be recognized. I still get the same errormessage and $KernelCount still says 0.

And even if I add them by hand with LaunchKernels permanent anyhow, wouldnt they be started all at once on startup then? When I am not completely wrong, they were started automatically in previous versions, only when they were needed.

I install an older version now on another sd-card to see the differences exactly...