Can’t shift into gear.

Hey all,

I have a manual 2006 Civic Coupe EX that won’t shift into gear when the car is on. We’ve opened the clutch up and replaced anything that might’ve been an issue - the plate was cracked - and everything else is good to go. The pressure on the clutch pedal is good, and the slave cylinder isn’t showing signs of any leakage. I can start her in third gear without stalling, but that’s all the movement I get. Any thoughts on potential issues? The fork and the throwout bearing also look good, so not sure what the problem is.