Real Flight 9 (RF9) is RC model airplane simulator software, marketed by Horizon Hobby: https://www.horizonhobby.co.uk/en_GB/product/rf9-flight-simulator-software-only/RFL1101.html
I installed this software on my Win 10 AIO PC some months ago (I think July 2020) and it has worked fine, which it still does. No issues.
However, on 10 Oct 2020 19:14 Malwarebytes quarantined a file 'MachineLearning /Anomolous.100%' located in C:\Program Files (x86)\RealFlight9\Launcher9.exe.
I raised the matter with Horizon Hobby, asking if I could report this to Malwarebytes as a false negative? The reply stated: "...yes you can. The launcher9 file is simply the launcher program which runs the launcher menu and allows you to update to later versions amongst other things."
So there we have it. I report 'MachineLearning /Anomolous.100%' located in C:\Program Files (x86)\RealFlight9\Launcher9.exe' as a false negative.
Best,
David