I noticed that my honor tab had some weird bug where the round progress bar would turn black instead of orange and a timer would count down on it.

Tried turning off all addons and turning each on individually to identify that this issue was being cause by OmniCC

I'll provide a screenshot below to better show the issue.
https://imgur.com/AMfSohf

Would like to know if this is a known bug / if it is going to be addressed.

Thanks

That was my suspicion

I believe this is fixed with the 8.0.1 version.

I can confirm this is NOT fixed with the 8.0.1 version. :(
To add to this: The cooldown no longer shows. That is fixed.
The circle that shows how much honor you've earned is still black instead of the orange/red it is with OmniCC disabled.

Same problem here, its a weird bug. Can this be fixed? =)

This is likely fixed in the betas.

Was fine in 8.0.5, but bug appeared again in 8.0.6