hello,guys. I had the same problem.Recently I have found a solution to this problem
So, you can try the following solution：
1.Add Windows system environment variables；
name:JAVA_TOOL_OPTIONS
path:-Dfile.encoding=UTF-8
2.save it
3.restart your Katalon Studio,
If the above steps are not detailed enough, you can visit my blogtestclass.I wrote the detailed instructions, but I used Chinese to write.
Before configuration modification:
After configuration modification:
u see it works 