Strumming not working in ableton 10

my strumming feature is not working in ableton 10. It used to work but it doesnt anymore. I am using my same mac computer as I always have (high sierra). I have the latest scaler 1.8 version as well. Is this a known issue?

I’m running Mojave and have no issue with strumming. You might need to provide a bit more info or screenshots in order to determine the issue.