Chess.com Evaluation Bar Bugging

So I decided to create a custom position and when I played it against the computer, the evaluation bar said black has the advantage, even though white is clearly winning. It eventually caught up and gave white a mate in 16, but I'm not sure why it did this.

sometimes it takes a while for the evaluation bar to analyse the position, check your depth and version as that effects how long the analysation takes

Engines aren't designed for non-standard positions.

they still analyse the posotopm

position*

Engine speed depends on the speed of your computer and the internet speed

They do but are very likely to have issues like in the first post. It isn't something that is considered a bug

If you have a bug hover over the question mark and press report a bug.

That's one option but posting in beta is also am option.