Is it just me or does NXT no longer auto fill the action summary with previous entries like it used to?

I'm used to adding actions with the same summary eg "TY letter sent - SPECIFIC FUND" or "Stewardship Update FUND", and just typing T or S would bring it up as an option. But this seems to have gone, and it makes searching for actions by subject more difficult, as action summaries aren't completely consistent across records.

EDIT: I've just seen this answered in the knowledge base "The Actions form recently received the modern theme update. When a field's underlying markup changes, browsers may treat it as a new field and temporarily stop displaying previously saved autofill entries. These entries rebuild over time as the field is used again."

However, this has been the case for several months, and my browser is not auto populating despite the settings being on, so I still wonder if this is due to something in the theme update which is stopping Chrome from recognizing it as a field?