Missing Steinberg menu from AU Instruments

I have just realised that the Steinberg menu is missing after updating Logic Pro X to 10.5.

Plugin manager validated HALion 6 and HALion Sonic 3 successfully.
I can use the standalone version without any problem.

But: Steinberg menu is completely missing from the AU Instruments menu…

Any help would be greatly appreciated.

Hi PP1965,
unfortunately there’s nothing we can do to eliminate this issue right now.
We’re in contact with apple and we hope that they will provide soon a fix for Logic or tell us what we have to change in our plugins to solve the problem.

A possible workaround from the LogicProHelp forum is perhaps this one:

Finally I created a new admin user, started Logic and after the validation of the plugins I could create a new empty project with an instrument track. And YES, the Steinberg menu was there, I could use it again.

best regards
Gerrit Junge