Hi,
This is an old post 
I have the same issue.
vmplayer 15.5.7 build-17171714
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.1 LTS"
sometimes it's freezing and sometimes no freezing.
Regards