Hello @vantech
I suspect the root cause is the same as the one causing the sound issue you reported:
Some sounds stop playing after changing cameras - [MSFS 2024] Bug Reports / Sound - MSFS DevSupport
I would not be surprised if specifying the FX position through offsets rather than node names would give the expected result.
I’ll log it anyway in case this is unrelated.
Regards,
Sylvain