Android 13 / Pixel 7 external maps problem

I now have my new Google Pixel 7 Pro with Android 13 and the first thing I tried to of course was set up Locus Maps :-)

The problem I am encountering, however, is that I can't seem to import any offline maps.

On my previous phone I used a lot of openandmaps and I have now imported them to my new phone but when I try to import them Locus now says

"Linking to maps in external directories is no longer supported. Select 'Import', find the map files and load them to the app's map directory"

but when I then try that, Locus does not recognise/find the maps even though I lead it to the folder which contains them.

So... Does anyone know what to do?

Thanks in advance.