Sketches Losing their Projections when Parameters Updated

[dallinN5N4D]

I'm having issues with sketches losing the geometry they are based on/projected from whenever I update the parameters. This is a consistent issue I've been dealing with in several different situations. I've been using workarounds for a lot of them, but I'm not sure what to do here. I want to break the original part into four pieces with dovetails to join them.

Everything's working here

Here I changed the parameters to AB:80, A1:40, A2:85, B1:85, B2:40 - and now the dovetails have lost their position.

An explanation of what's going on or suggestions what I can do would be appreciated, thanks!

[dallinN5N4D]

@davebYYPCU  thanks for the help! I'll keep messing with your file, but so far I haven't been able to break it. I think it'll work for what I need. It's interesting that drawing the miter lines in sketch 1 is more robust. Hopefully the bugs with parameters are resolved soon, I rely heavily on parameter changes.