So today I updated using the check updates builtin feature and after a successfully update all my files were deleted (lost my whole project 2.5 month worth of work). The funny thing is that all the folders I created are still there with no file. So the whole project structure is maintained but work is lost. Anyone knows how I can recover my files? 
hello,
do you know what is git or github, there all your files are in save and github is free
don’t know how to recover lost files, sorry
Wish I had read your post before I updated. I’ve just lost all my files from the update too. I have no idea how to recover them.
I managed to get some of my work back after the IT Technical team ran some recovery software on my hdd. Although some script files can back corrupt but at least I did not start from scratch. My advice is try running some file recovery software. All the best
my advice is, don’t store your projects inside katalon instalation folder.
and yeah … use certain VCS tool