Seven years later, and our team is resorting to using Derived Fields in CJA to achieve this extremely basic functionality. Such a bummer.

@SarahHarmanNZ 爛爛爛

Absolutely. I did exactly this just a couple of hours ago, so... 爛Thanks again for responding. It's good to know that I'm not the only one encountering this bug. I thought I might be going crazy...

@Jennifer_Dungan: Yeah, I thought about adding it as an Idea right out of the gate, but this seems more of a bug than anything. I feel weird creating an Idea that is basically "fix this bug and make sorting work the way everyone expects it to". 

@SarahHarmanNZ Yeah, it's still broken. Very frustrating.

When I enter a search term into the Workspace Project List, why do I suddenly lose the ability to sort the list? It's particularly frustrating that I can't seem to sort by "Last Modified". Is there a workaround for this? 

Filtering or searching seems to break the sorting function on the Workspace Projects list. It's been this way since the new interface was launched. Really frustrating to see such bog standard interface elements that simply don't work...

I dug around a bit to see if this was still the case, and, yeah, it seems like there's no way to revert to a prior Rule revision. You can switch to an old revision in the Compare Revisions screen and then click the "Use These Changes" button, but it creates a new revision that would then need to be ...