Try downloading and installing 2.3.2 beta https://www.dropbox.com/scl/fi/6xmyjf30bk52ebbv7nq8f/Install_SignalRgb_2.3.2-beta-c89c4b9e.exe?rlkey=5nmvqgml1trnrrwexo7d3hzch&dl=1
Once installation completes, quit the program which should have launched, and launch it again with administrator rights.