Continuing rating bug

My rating first dropped during the challenge early last year.
I saw the topics at the time and was patient with it. I ended up stopping reviewing, as I didn’t want to get banned or lose all my accounts. Came back during the challenge towards the end of the year, again seeing all the topics around the bugs/issues. Again just let things play out and waited for a fix. However, coming back to wayfarer reviewing again yesterday my rating is still “fair” and hasn’t been amended/fixed as part of the apparent resolution of the issue.

Since yesterday I’ve done 62 reviews and my progress towards an upgrade (would be my 50th) has gone up 52%. But my rating remains “fair”.

Before the first challenge last year with all the issues it was “Great” and dropped to “fair”.

I have 323 accepted POI nominations. I’ve done 6893 reviews all time. This just doesn’t make sense to me, and has meant over the past 12 months I’ve likely missed contributing hundreds of reviews.

I guess it’s possible everything is working as intended and my reviewing is terrible! But seems unlikely.