Articulate Storyline 360 crashing Problem

Yogesh - I'm having the same issue, and am working with Articulate Support on a resolution. There is apparently a known bug with some processors. According to the support team:

"We've identified an issue that causes performance issues in Storyline 360 for users who use Intel 11th Gen Core series processors or later. Our engineering team is already aware of this issue and are working on a fix, but I am currently unable to provide an ETA on when this will be released."

In a follow-up email, one workaround suggested was to use a dedicated graphics card:

"[Does] your computer have access to a dedicated graphics processor?

You can use a dedicated graphics processor such as Nvidia by forcing Storyline to use dedicated instead of integrated graphics. This may help address the issue if the option to switch is available for you." 

My own device does not have a dedicated graphics card, so I couldn't pursue that option, but I agree, the problem is extremely frustrating and happens so regularly that I can't seem to get much done without at least one crash.