I don't know how to replicate, because I don't see nothing common between all the hangs (excepts clicking on a part of the skin that has a Mouse Click Option).
In management console I see:
Event 1002, Applicattion Hang.
The Rainmeter.exe program, version 184.108.40.20664, stopped interacting with Windows and closed. To see if more information about the problem is available, check the problem history in the Security and Maintenance section of Control Panel.
4.2.0 beta r3064 64-bit (May 13 2018) - Spanish (3082)
Windows 10 Pro 1803 64-bit (build 17134) - Spanish (3082)
Path: C:\Program Files\Rainmeter\