Seemingly a jQuery Conflict with RSPageBuilder

On a Joomla 4.4.2 site we have RSPagebuilder and the Regular Labs - Advanced Module Manager 10.0.21 installed. Both Komponents are needed. Sadly there is a jQuery Conflict between these two. you cannot edit a RSPageBuilder-Elements Module when Adv. ModuleManager is active. the browser console shows many 'Uncaught ReferenceError: jQuery is not defined'. When deactivating theRegular Labs - Advanced Module Manager plugins and component solves the issue. one of the two solutions does a bad jquery noconflict job.
i have posted this on the RSjoomla forum too - no answers for nearly 2 months now. any idea how to solve this?

Yeah, i thought so too but as i wrote, deactivating the advanced module manager extension solved the issue. there must be some kind of correlation. RSJoomla isn't much help either, since this is a free extension - although well maintained otherwise.

that is very kind of you. i totally understand you cannot officially give support here. that's why i contacted RSJoomla again to help solving this issue. if this doesn't solve the problem i will come back to your offer - as kind of a last possibility.
thank you very much so far.

Hello Peter, we have solved the issue with the support of RSJoomla!
Many thanks for your help and the proposal to take a look.
Have a nice weekend!
Emanuel