Can't get to shift to smallest cog & skips through cassette
It's a GRX derailleur. It'll shift down to the 2nd highest, but then even though the shift lever pushes over, nothing happens. It will go all the way up to the big ring, though. It also skips around a lot as you move up and down through the cassette - it won't stay on certain cogs or will want to bounce back and forth between them.
It all started because I tweaked the barrel adjuster a tad as it was initially skipping a tad on a few and sounded a little clicky like it wasn't just right. Then it snowballed from there and it's all gone to hell.
halp pls.