Using the application version of GoToMeeting on a MacBook Pro running macOS 10.13.6 when using the drawing tools the appearance of the cursor reverts after a few seconds to the default arrow appearance although the behaviour as a tool remains. Of course this means that the spotlight tool becomes useless but pen and highlight still work, the cursor appearance just looks like it should be the pointer. Going back and selecting the tool again resets the cursor appearance but it reverts again after a few seconds.
BTW if there is a way to file a bug report to logmein I cant find it.