As for the the problem with autorepeat, it looks like the issue in https://www.nomachine.com/TR10L04603. It should be already fixed in the last version.
Regarding the first problem, what is the resolution on your client machine? Logs could be useful to understand what’s going on. You can find instructions for gathering a complete set of logs in https://www.nomachine.com/AR07K00677 (you can send them to forum[at]nomachine[dot]com, if you prefer), but for a start client side logs could be enough. Please also check if you have a .config/monitors.xml file in the user’s home on the server, and what resolution is specified there.