Image Matching works only after fresh restart on Catalina


I've a macro which waits till the image condition is MET. It works fine post a restart but after some time it simply won't recognise the image .

I've tried killing KM service & restarting KM. Killing the application where the image is and it still won't work. I've tried killing other applications as well.

I'm on the latest updated version.

OK just found out , I'm using an app called Brightness slider. When the brightness is set to MEDIUM it won't recognise .

This was super unintuitive honestly !