Unfortunately it is still buffering and stopping using the suggestions so it is still not fixed.
Using latest Windows 10 64 bit 1909 version here.
Installed - Re-installed multiple times on all computers.
Tried Port Fix and MP Purge on all computers.
It definitely does not work any more here without issues.
Buffering and stuttering and randomly stopping.
Spent ages testing this and have given up now.
Only thing I can think is now it is due to the 1909 update.
I'm now thinking you may need to update Multiplicity code to make it work with the latest version of Windows 10 - 1909.
It has not been updated for ages now.