Sampler Track Bug (Nuage)

I don’t usually do EDM stuff so this bug has only just surfaced - and it’s the same in Cubase 10.5, Nuendo 10.2 and 10.3.

When I add a sampler track and open the editor (lower zone) a separate editor window pops up then closes repeatedly making the sampler track useless as I can’t change any settings due to the pop-up every 2 seconds.

When I remove Nuendo from the Nuage workgroup the Sampler tracks work perfectly so it’s something to do with the Nuage control surfaces causing it. This bug is 100% repeatable here & I’ve tried trashing prefs.

Is there a setting in prefs/Tools for Nuage I’ve missed somewhere?