Climb portal scaling locked

I just started a ride up the Aspin today at 75% from the home screen. When entering the portal, scaling options were shown locked (except for 100%) but since 75% was pre-selected, I could enter the portal at 75%. After a full circle, switching to 50% was no longer possible.

I had done the Aspin at 100% and 125% before. Also I have ridden different climbs at multiple scaling levels within an activity before. Is that a regression or a change? Couldn’t find it in the release notes anywhere, but the back-and-forthing of versions didn’t help so I might have missed it.

This definitely seems like a bug to me. Why should lower climbs be locked out? Please bring these back.