Volvo 240 m46 problem with 1 gear grinding when engaging

[Echo1975]

So this problem happened again where if I am moving and try to put 1 gear in, it won't go in easily and I can hear gear grinding and when I push on it harder it goes in.

This happened around 6 months ago and it stopped happening in 2 weeks and only came back now.

More in depth when slowing down lets say in 2 gear and I press the clutch in and try to engage 1 gear, I feel no resistance in the shifter and just hear gear grinding until the gear goes in.

I'm baffled considering it went away on its own the last time and it's back without me doing anything.

What could this be?