Yesterday: Everything working just fine.
Today, after changing nothing: Roon skipping through every track in rapid pace, saying it can’t open files. Playing from NAS, everything is mapped correctly, files are accessible from PC. Mysterious.
Same independent of chosen endpoint.
Tried the reboot, restart, things obviously. Same behaviour.
Ok. So a few days later, took a pause to work with our garden instead. And now it works. Did absolutely nothing to improve the situation since last time when it didn’t work. Not even a reboot. But now it works. Super weird.