In March we upgraded MobiControl Cloud to 15.6.1

Remote Control worked perfect before, but now we got the Error-message:

An Error occurred while processing the request

Sometimes, I send the Script: _adminmode off, then the device turns offline for roundabout 1 Minute and then it goes online and remote control ist running again. 
But we have devices, they don't react on scripts. They're shown online, but nothing happens.

Here you can see a device I send 3 scripts, but there is no feedback. For the Samsung XCover Pro devices are no Plugins available and it's the actual Agent installed (15.3.3.1069) on Android 12.

It's not possible to send new App-Profiles to this devices, because they stuck on pending installation.

But when I can manually open the adminmode on the device, that I see the device-configuration and tap on connection status of agent, the device is "really" online and all script, App-Profiles, etc, got installed.

The most of our devices don't have this issue, but if Remote Control does'nt work or I can't install new Apps, makes an MDM no sense.