Came across what seems an odd odd minor bug to me.
With an object selected, I use Effects > Video effects > Brightness/Contrast.
I enter a number directly in Gamma to replace the zero default. On pressing the Tab or Enter key, the result often seems to be reduced by 1. Entering 10 gives 9, 25 becomes 24, etc. But some, like 20, are unchanged. Hardly life threatening, but strange.
I also briefly tried Contrast, with fewer quirks.
Just me, or can others reproduce please?