Nuendo 11 extremly unstabile in OS X

Hi Steinberg
My Nuendo 11 is extremly unstabile in Mac OS X Mojave and before in High Sierra too. On my 2018 Macbook Pro 15?
Version 10.5 is definitely better so far ?
Any suggestions ? I like the new features but cant work so far…

10.14.6 here and rock solid. Never had a Nuendo so stable and powerful performance.

Stable here. Just spent three full days (10+ hours per day) mixing a live album to picture. Zero issues.

This is my system:

Macbook Pro 2019 8 Core Intel i9 2.3GHz 16GM RAM
Intel UHD Graphics 630 1536 MB (dual screen)
Mac OSX Catalina 10.15.7
Dante Virtual Driver
Focusrite RedNet 2 audio interface
Avid Artist Mix (x2) Avid Artist Control mix surfaces.
UAD2 Satellite Quad Firewire 800 plug in processor
LaCie 4 TB USB3 audio drive

…very solid here too (on catalina 10.15.7), but a crashfest with quite a lot of various plugin-brands (nearly never had problems with that until NU10). as always, plugins-devs blame the host, and the other way around.

I will send the pictures to sea some facts but sending proofs is blocked in this forum?