I'm new and know relatively little (got my tractor 2 days ago), but I'd recheck the hydraulic connections. I hope that's not insulting, good luck, I'll be following along.
Did a little searching, this sounds similar.
"1025R with 260 Backhoe Controls are stuck | Green Tractor Talk" 1025R with 260 Backhoe Controls are stuck
Did a little searching, this sounds similar.
"1025R with 260 Backhoe Controls are stuck | Green Tractor Talk" 1025R with 260 Backhoe Controls are stuck