I created a custom snippet, to use frequently in my projects and it is working as expected till now.
However, today when I tried to find it, it was not there, after looking for a while here and there, so I checked the UiPath installation directory. Here, I found there were 2 versions of app-19.10.*. Luckily it was there in old version and I just had to move it to the new version.
My suggestion to the UiPath development team, it to take care of similar things, which may look small but can have a big impact as a product/tool.
Thanking you for reading through this mesage.