Found and article stating James has a hamstring problem.
https://www.tilbo.com/koster-vasthouden-aan-onze-speelwijze/
On James McGarry, Dimitris Kolovos and the longer absent Karim Coulibaly and Jordens Peters after, Koster has a perfect selection. Koster: 'James has some problems with his hamstring and Dimitris has unfortunately had a backlash. '
Edit: Dated one week ago.