Did you push the piston out of your caliper? If so just push it back in evenly. When the piston gets pushed out it usually fine. Just takes a lot more work to bleed air out. Also just watch around the piston for oil leaking. If it is leaking you could look for the oring(s) seal (might be a square edged orings) to replace it. Don't let your pistons get damaged around the seal. Make sure no grime is on them either.
I've reused the olive. It's not a huge deal. It can be a pain to set a barb even with basic tools. You don't have to replace the full hose when switching. Just cut the end with a razor, knips, hose cutter, scissors. Then new barb and olive.
I'm going to do one more ride tomorrow with the onirii calipers. I did a ride Tuesday stopping was fine. I just want to be sure my pistons are moving and releasing evenly. I have tons more stop and go lights for tomorrow's ride.
Long story short: it's stuck in a weird position and I can't push it back fully or take it out
Long story long for people who want to laugh at me/not make the same mistake:
I bled the rear brake last week but *really* poked my thumb trying to push the bleed block in place because there's a stupid pin inside the caliper for some reason. 20% of my thumb is still black (I'm not). Great bleed though for a first time.
I didn't want to fight the front brake while putting in the bleed block and I thought pistons would only contract if you squeezed the lever. I didn't put the bleed block (I removed the disc from the wheel and the pads of course) but big mistake, pushing in oil also activates the piston, or at least the right one. One is still in place but one fell out. I tried putting it back in but only one side pushed in properly (used moderate pressure with a plastic tire lever, nothing major I think)
I'll take my bike to my dad this weekend to see if he can get it out. I'm hesitant about bringing it to my LBS considering it's a chinese frame and he already told me "that's what you get for buying chinese crap" after I brought him a singular wheel that needed trueing that came from a bike HE SOLD ME.
Costly mistake. Fuck you Shimano for the sharp pin.
(The bruise is on the other thumb)