Player not improving

Hi all. I'm managing Dorking Wonderers, currently in League 1. I signed Nicolai Skoglund at the start of the season. It's now the end of the season and he hasn't improved at all!

He's a 20 year old striker, driven personality with 17 determination. Has been in top form this season, scoring 40 goals across all comps, been training well (normally hovering around 8.0 for training performance) and no major injuries all season.

I downloaded FMSE to track the CA of my first team, and it's stayed at 114 all season. What's more, his player development curve has dropped off a cliff and my assistant has changed him from a good Championship striker, to a leading League 1 striker.

I had the exact same issue with Sancho on a previous Man Utd save. The only thing I can think of is FMSE is somehow freezing my player attribute (I haven.t purchased the license so no edits have been made to the game file). Help!

Got nothing to do with FMSE, sometimes it's just unfortunate random chance. Not all player growth can be 100% predicted, sometimes you're just lucky/unlucky.

That sucks. He has a PA of around 140 as well. There was so much growth left in him
As an experiment, I'm going to try and loan him out for half a season and see if that kick starts his development. No great use to me going forward if he wont improve at all. I'll update if there's any change