Thanks for you support of the site, and insightful reply.
Most importantly perhaps - I’ve been able to confirm overnight that
… what you are seeing is a bug, and a fix will be on its way 
Sorry about the “interesting tone” … the intent was to be both conveying an opinion (a decision) and the reason for it.
A reason that we keep working on OGS - changing it with features and updates - at the expense of stability is to avoid stagnation. Stability is a good thing, but comes at a price.
It’s a conscious decision - a thing can’t both “improve” and “be totally stable”.
Of course, improvement comes at a price: instability and bugs 
. So we do the best we can to tread the line.
It is definitely annoying when something that was working stops working - hopefully disappointment about that can be mitigated knowing the bigger picture.
In respect of the wider change you’ve seen: this is definitely controversial. It is a big change, undertaken with a lot of consultation and debate:
This is one of those rare instances where a change genuinely does take away some options (or presents them differently): not a decision that is taken lightly. You can read and contribute to the debate about that 
I really hope that the bugfix you’re looking for comes in quickly and you can resume the play you have been enjoying.