I installed MC 26 yesterday on a Linux-Ubuntu 20.04 LTS box.
I connected MC to my NAS, where my music is located. I added the music to the MC library and everything initially worked as expected. But I also have an UpNp streamer in another room, and I stream music to this streamer. This also worked initially, but after a while it locked. After that, nothing has worked. MC does not find the music on my NAS. MC freezes and locks etc. I tried to connect my backup of my music archive, which I have on a USB disk, and connected the disk to the computer with MC. I made a new library in MC, and everything initially worked as it should, but after a while the exact same problem arose again. It seems that MC freezes, i.e. or locks. It is not even possible to turn off MC, i.e. to close it down. It is also very tough or jerky to try to move the MC-window on the desktop. Someone who can help me, who knows what is wrong?