[BUG_MP] Unable to join server after update to 7.2.1.1/7.2.12

[Dewe03]

Steps to reproduce
Updated from 7.2.1.0 to following 2 versions. Server starts just fine but in the moment someone tries to join you get stuck at 99% and
Serverlog shows error. Client log stays clear.
After downgrading from 7.2.1.1 or 7.2.1.2 back to 7.2.1.0 everything just works fine again.

Courseplay version
Version used: 7.2.1.1 & 7.2.1.2

Server Log
log.txt

Player on the server
0.

Dedicated server or local hosted server
Dedicated server yes

Map
Somewhere in Thuringia III

Relevant script mods
Autodrive, Enhanced Vehicle, SimpleIC...

[Tensuko]

Strange, on that part nothing was changed.

You may try the following:

• make a backup of your savegame
• start your game without CP and save it
• add the latest CP Version to your save and try it again

If the Issue still exists, we have to look deepter into this.

[Dewe03]

Tried just as you´ve written above.
Problem is the same.

[newbie-near-cologne]

We had the same issue on our Dedi. With V7.2.1.2 the Server run but if you wanna join it hangs at 99%. I had activated the logging on the server and got the following error many times:
profile/mods/FS22_Courseplay/scripts/ai/parameters/AIParameterSettingList.lua:339: attempt to perform arithmetic on local 'value' (a nil value) 2023-04-17 17:59 Warning: StreamWriteTimestamp only is allowed to be called before any other write calls. 2023-04-17 17:59 Error: Running LUA method 'update'.

Maybe it helps.

Edit: Switch back only CP Version to V7.2.0.5 and you have no errors in the log. You can then join. I have set up a new Dedi Server with an empty savegame. But with V7.2.1.2 it's not possible to join in our configuration. As I heard that other guys have no issue on a Dedi with V7.2.1.2, it could be a problem in combination with another mod. But maybe you can avoid the error which is pushed from CP mod and then it helps all. The error message is triggered by CP mod, so that's why I'm writing it here.

[newbie-near-cologne]

I made some more test and use also only the minimal mods we need for the used mod map. I also tried to start the game without CP, join, save the game, and then install the latest CP version V7.2.1.2 -> same behaviour if you wanna join it stops at 99%.

Additional I tested with the standard map Elmcreek and all necessary mods for the used mod map, then you can join so it is something in the mod map which trigger the failure of CP V7.2.1.2.

Courseplay version
Version used: 7.2.1.2

Server Log
ITALIA Emilia Ext MP_only necessary mods_no CP_Server Log.txt
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_1_2 after save game without CP_Server Log.txt
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_0_5 after Client cant join with CP V7_2_1_2_Server Log.txt

Client Log
ITALIA Emilia Ext MP_only necessary mods_no CP_Client Log.txt
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_1_2 after save game without CP_Client Log.txt
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_0_5 after Client cant join with CP V7_2_1_2_Client Log.txt

Player on the server
0

Dedicated server or local hosted server
Dedicated server yes

Map
ITALIA Emilia Ext MP

Relevant script mods
No script mods -> see log which mods we used

[newbie-near-cologne]

I found now the way to activated all debug channels, so here some additional Logs with debug activated:
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_1_2 alle debug channels activated_Client cant join_Server Log.txt
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_1_2 alle debug channels activated_Client cant join_Client Log.txt

Here the logs with all debug channels activated and working V7.2.0.5:
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_0_5 alle debug channels activated_Client join_Server Log.txt
ITALIA Emilia Ext MP_only necessary mods_with CP V7_2_0_5 alle debug channels activated_Client join_Client Log.txt

[schwiti6190]

@newbie-near-cologne Could you try it again with the current main version?

[Dewe03]

I downloaded the 7.2.1.3 and updated our server. Everything works just fine. No more errors in the server- or clientlog