Issue was reported @P10. From the first glance looked like broken network card, but then realized, that CMOS battery is dead. Andre takes cara about other EIGER detectors.
Issue was reported @P23. After Sardana update, it now always utilizes the latest pickle protocol, which is 4 for py3.8 (deb10) and 5 for py3.10 (Deb11). As the result, spock session, started @deb10 PC miscommunicates with macroserver, started @deb11 PC - this leads to the empty environment inside Spock session. The new package is ready to be distributed, but urgent solution is adding "PickleProtocol" property to MacroServer, set to 4 and restart MacroServer