This is not exactly mu issue but I believe that as in my cameras after you align the 3 notches and you spin the camera body counter-clockwise and put a little bid of pressure it will snap on place very tight, my issue is after it snap on place the bottom adjustment spin loose as you can appreciate on the video in my last post

https://youtu.be/B546aeIB4LU

This is not exactly mu issue but I believe that as in my cameras after you align the 3 notches and you spin the camera body counter-clockwise and put a little bid of pressure it will snap on place very tight, my issue is after it snap on place the bottom adjustment spin loose as you can appreciate on this video

Just received my new system purchase for black Friday and I am glad that it worked fine with the wireless mouse from amazons
https://www.amazon.com/AmazonBasics-Wireless-Computer-Mouse-Receiver/dp/B005EJH6Z4/ref=sr_1_9?crid=16PQN5FWRX21W&dchild=1&keywords=wireless+mouse&qid=1607030839&sprefix=wireless%2Caps%2C236&sr=8-9
After upgrading the firmware to the last version the system have problems for a while restarting by it self every 30 seconds and do not even give me time to go to settings to bring it back to factory settings, after a while is working fine so far, but the most important thing is that this wireless mouse works perfectly