Loading v1.9.2-generated savefile into v1.9.2 dedicated server produces NewGRF mismatch

[Berbe]

Version of OpenTTD

v1.9.2, packages fresh from openttd.org
Client; Windows x64
Server: Linux Debian Stretch x64

Expected result

dbg: [net] [core] starting network...
dbg: [net] [udp] initializing listeners
dbg: [net] [core] network online, multiplayer available
dbg: [net] Detected broadcast addresses:
dbg: [net] 0) 172.17.255.255
dbg: [net] [udp] closed listeners
dbg: [net] [udp] initializing listeners
dbg: [net] [udp] closed listeners
dbg: [net] [udp] initializing listeners
dbg: [net] starting listeners for clients
dbg: [net] [tcp] listening on IPv4 port 0.0.0.0:3979 (IPv4)
dbg: [net] starting listeners for incoming server queries
dbg: [net] [udp] listening on IPv4 port 0.0.0.0:3979 (IPv4)

Loading old savefiles (generated with OpenTTD <= v1.8.0) produces such an output and makes them usable.

Actual result

dbg: [net] [core] starting network...
dbg: [net] [udp] initializing listeners
dbg: [net] [core] network online, multiplayer available
dbg: [net] Detected broadcast addresses:
dbg: [net] 0) 172.17.255.255
dbg: [grf] NewGRF 46727806 (opengfx_trees-0.8.0\opengfx+trees.grf) not found; checksum BBE029FCDD7A16F85876D417FF318D23
dbg: [grf] NewGRF 43415000 (opengfx_airports-0.4.2\ogfx-airports.grf) not found; checksum 4DA9FE9A87DD330EBAD43916771BAF21
dbg: [grf] NewGRF 4F472B34 (opengfx_landscape-1.1.2\ogfx-landscape.grf) not found; checksum 136D889FDAEAA3491F8320248A04425C
dbg: [grf] NewGRF 4F472B32 (opengfx_road_vehicles-0.4.1\ogfx-rv.grf) not found; checksum B46F2D7781158DD122F2E4B2AFC9F38F
dbg: [grf] NewGRF 4F472B31 (opengfx_trains-0.3.0\ogfx-trains.grf) not found; checksum 4E0B2D42462F295F36AFBA90D239A323
dbg: [grf] NewGRF 44440A01 (av8_aviators_aircraft_set-2.21\pb_av8w.grf) not found; checksum FCEEC76CF44EC23E7FE9C88048CF11CC
ERROR: Missing GRF file(s) have been disabled
dbg: [net] [udp] closed listeners
dbg: [net] [udp] initializing listeners
dbg: [net] [udp] closed listeners
dbg: [net] [udp] initializing listeners
dbg: [net] starting listeners for clients
dbg: [net] [tcp] listening on IPv4 port 0.0.0.0:3979 (IPv4)
dbg: [net] starting listeners for incoming server queries
dbg: [net] [udp] listening on IPv4 port 0.0.0.0:3979 (IPv4)
dbg: [grf] NewGRF 46727806 (opengfx_trees-0.8.0\opengfx+trees.grf) not found; checksum BBE029FCDD7A16F85876D417FF318D23
dbg: [grf] NewGRF 43415000 (opengfx_airports-0.4.2\ogfx-airports.grf) not found; checksum 4DA9FE9A87DD330EBAD43916771BAF21
dbg: [grf] NewGRF 4F472B34 (opengfx_landscape-1.1.2\ogfx-landscape.grf) not found; checksum 136D889FDAEAA3491F8320248A04425C
dbg: [grf] NewGRF 4F472B32 (opengfx_road_vehicles-0.4.1\ogfx-rv.grf) not found; checksum B46F2D7781158DD122F2E4B2AFC9F38F
dbg: [grf] NewGRF 4F472B31 (opengfx_trains-0.3.0\ogfx-trains.grf) not found; checksum 4E0B2D42462F295F36AFBA90D239A323
dbg: [grf] NewGRF 44440A01 (av8_aviators_aircraft_set-2.21\pb_av8w.grf) not found; checksum FCEEC76CF44EC23E7FE9C88048CF11CC
dbg: [net] Loading game failed, so a new (random) game will be started!
dbg: [net] Generating map, please wait...
dbg: [net] Map generation percentage complete: 5
dbg: [net] Map generation percentage complete: 10
dbg: [net] Map generation percentage complete: 15
dbg: [net] Map generation percentage complete: 20
dbg: [net] Map generation percentage complete: 25
dbg: [net] Map generation percentage complete: 30
dbg: [net] Map generation percentage complete: 35
dbg: [net] Map generation percentage complete: 40
dbg: [net] Map generation percentage complete: 45
dbg: [net] Map generation percentage complete: 50
dbg: [net] Map generation percentage complete: 55
dbg: [net] Map generation percentage complete: 60
dbg: [net] Map generation percentage complete: 65
dbg: [net] Map generation percentage complete: 70
dbg: [net] Map generation percentage complete: 75
dbg: [net] Map generation percentage complete: 80
dbg: [net] Map generation percentage complete: 85
dbg: [net] Map generation percentage complete: 90
dbg: [net] Map generation percentage complete: 99
dbg: [net] Map generated, starting game
ERROR: Game Load Failed?NewGRF mismatch

Steps to reproduce

1. Generate a savefile with OpenTTD v1.9.2 Windows x64 (Installed with openttd-1.9.2-windows-win64.exe)
2. Load it in a fresh install of OpenTTD v1.9.2 Linux Debian Stretch x64 (openttd-1.9.2-linux-debian-stretch-amd64.deb), along with a fresh copy of OpenGFX v0.5.5 (opengfx-0.5.5-all.zip) started as a dedicated server

It does not matter if the generated savegame has been generated randomly or based upon a heightmap.

[Berbe]

Nervermind: chair-keyboard interface issue.