I think I'm going to have to go back to my previous iteration of Studio (2015) for now. 2019 just seems to be too buggy. At least I'm presuming this latest issue I've come across is a bug...

During a translation, I confirmed a segment and came across a fuzzy match a little later on. Upon reading the fuzzy match, I decided to go back and tweak the original segment. I replaced one word, confirmed and went back to the fuzzy match. Strangely, the TM still suggested my previous, unedited translation as a fuzzy match rather than the new translation I had just saved to the TM. Thinking this was odd, I hit 'Alt + Insert' to pull the source text into the segment, exited the segment, and then returned to it to see if the TM would suggest the new, edited translation as the fuzzy match. It didn't. It still offers the previous version even though that version should no longer exist in the TM.

Any ideas why Studio would demonstrate this behaviour?