First, may i know your OS version?
Since windows releases win 10 2004 update, we have received some controller fail reports, some major MB makers also received it, it will cause USB detection fail, then system does not recognize the controller and products you plugged. It may be the reason of your 1st and 2nd issue. Currently we are trying to figure out how to solve this issue, especially on Riing Quad.
If you didnt install 2004 update, it might be a defective controller, our customer service can help you to go through RMA process.
For the 3rd issue, if you mean Riing Quad does not show on neonmaker, if might be the same issue like mentioned above.
if it is not riing quad, for case fan, Neonmaker currently only support Riing quad and Riing Trio fan.
Regarding RAM, checked with our software team, it is a detection error, they will fix it asap.
TT RGB Plus and Neonmaker can not be used with MSI RGB software at the same time, if you choose to use TT Sync controller, then all products will not show on TT RGB Plus and Neonmaker.