We are having a problem of PCQ queues blocking randomly. When queue blocks no traffic passes through it, which for us means thousands of clients loose connectivity. Mikrotik admitted that it is a bug. I have configuration verified by independent specialist, so configuration is not a problem. I don't really know what to do as obviously no one else except for Mikrotik can fix the bug, and Mikrotik support is not behaving professionally (more or less ignoring us), sorry for the rant...
Any suggestions?