Hi @hegdesrinivasm and welcome to the Manjaro community.
Did you install OBS from the official Manjaro repo?
sudo pacman -S obs-studio
Are you using Wayland?
As a new user, please take some time to familiarise yourself with Forum requirements; in particular, the many ways to use the forum effectively.
The following links will help:
Post the output from this command, to begin with (any personal information is filtered out):
sudo inxi --admin --verbosity=7 --filter --no-host --width > inxi_output.txt
More useful links: