Traveller 2E on FG 5.1.4 Exception thrown on Client after connection

[BangsNaughtyBits]

Had an existing MgT2E campaign that started throwing exceptions on client after connection. Noticed today but I am unclear when the issue started.
I created a fresh default Traveller 2E campaign, no extensions, no modules loaded, new test name. When a client connects over the cloud or LAN it throws

[2/18/2026 12:09:55 PM] MEASURE: LOAD - PART 1 - 39.6667939
[2/18/2026 12:10:07 PM] [ERROR] Script execution error: [string
"MGT2:..manager_spacecraft_critical_data.lua"]:156: createChild: Invalid argument 1

I've repeated on three campaigns.

[Moon Wizard]

I've passed along to Toko Loshe, who has taken over the Traveller ruleset development.

Regards,
JPG

[Toko Loshe]

Had an existing MgT2E campaign that started throwing exceptions on client after connection. Noticed today but I am unclear when the issue started.
I created a fresh default Traveller 2E campaign, no extensions, no modules loaded, new test name. When a client connects over the cloud or LAN it throws

[2/18/2026 12:09:55 PM] MEASURE: LOAD - PART 1 - 39.6667939
[2/18/2026 12:10:07 PM] [ERROR] Script execution error: [string
"MGT2:..manager_spacecraft_critical_data.lua"]:156: createChild: Invalid argument 1

I've repeated on three campaigns.

I'm not getting the same error when loading a new campaign, and I'm setting up my database to have the same configuration as a newly created campaign without the new spacecraft critical system to see if I can replicate and fix it.

[Moon Wizard]

@BangsNaughtyBits,

Can you provide a zipped up copy of the campaign folder? That might help one of us recreate, and expose what might be the issue.

Regards,
JPG

[Toko Loshe]

I approached the problem from the wrong angle, its happening because of the script on the host. I neglected to make the new spacecraft criticals GM only and this caused the error.

I've removed the SC Critical menu item for clients and ensured that the script to populate the database entries only run on the host. In addition, I found and fixed an error on the client spacecraft combat tracker where if the user clicked on the 'effects' button an error would occur due to a missing function in the client script.

Thank you for reporting the issue.

[BangsNaughtyBits]

I rebooted the Mac host and the Windows client computer, created a new Traveller test 3 campaign and reproduced the issue. I then ccreated a Traveller test 4 campaign on the Windows PC to check OS dependent issue but it also reproduced the same issue.

I'll upload the zip now. I'll leave both hosts running under names Bangsnaughtybits and BnB with these campaigns running if that helps.

I tried other rulesets and did not see the issue.

[BangsNaughtyBits]

My mistake, here is the file.

[BangsNaughtyBits]

Looks like the ruleset update resolved this.

Many thanks.