MT5 Logs Taking Huge Amounts Of Space Suddenly?

 
Just recently when running some backtests on MT5, each test is taking up 20+ gigs of storage space on my SSD. I found that this is because of the Log file that is created in the Testing folder during the test. If I want to run another test I have to close MT5, delete that log file to free up enough space and then I can run another test. This never used to happen and I could run like 20+ tests in a session no problem. What has changed?