Thanks for the info.
Should be fixed.
I've restored the c1m1_hotel.bsp file on alServ2019 (copied from alServ2018).
I think I've executed "stringtabledictionary" on c1m1_hotel by accident.
And that modifed the c1m1_hotel.bsp map string table on alServ2019 (the c1m1_hotel.bsp file was modified compared to the c1m1_hotel.bsp files on the other servers)