APU stuck on available and won't shut off

[MustySky72]

The apu gets stuck and does not shutdown and the Master switch gets stuck, I follow a checklist or try several ways to solve this annoying problem and it just does not work That annoying bug is still there, the apu does not turn off, that is also seen in the airbus A321/A330/A320, both from msfs2020/2024 it only happens with inibuilds planes How can I fix this annoying system error?