07 Suzuki Reno clutch master cyl changed. slave cyl have to be changed same time

What is your question?

A friend mechanic changed our 2007 Suzuki Reno clutch master cylinder and the car shifted fine for approx 10 shifts then was hard to nearly impossible to shift. After immediately bleeding, the car shifted fine again but only momentarily. We noticed the black hydraulic line on the transmission from the slave cylinder is very loose and almost appears like this is the problem. It cannot be pulled out from inside the transmission but is very loose. Is this loose line normal? Can this line be repaired? Can the slave cylinder be changed without removing transmission? Although there are no signs of leaking fluid anywhere, does the slave cylinder need to be replaced at the same time as clutch master cylinder? Please note: The car shifts fine when turned off. The car only shifts fine while turned on when system is immediately bled. The slave cylinder black hose is loose but there is no sign of fluid leaking; is this normal? Does the transmission need removed to change the slave cyl

How long has your 2007 Suzuki Reno had this problem?

a few days since changing clutch master cylinder