Solution works for me too!

Note: I'm not a dev.

Can confirm - worked for me too. Thank you for posting the solution.

And by the way it's the same for the Type 63...

SOLUTION: 1) open steam console with WIN+R type steam://open/console

2. in steam console type this command: testappcloudpaths 107410

ok thank you. These still a big problem have little more to publish or update

Cloud access is disabled on steam side, not our fault. We didn't do anything.
We'll get in contact with Steam and see what they can tell us...

Hello Dedmen , Do you think the error came from steam? I asked support, they told me that it came from arma 3 and that they cannot do anything .

This doesn't confirm the "steam update broke it" theory.

Yep, the two might be connected

Same Problem for me , since the May 18 . I have désinstaled all game and steam , But the problem persist . No one know the solution ?

In T158403#2192729, @Socrates wrote:

In T158403#2192726, @dedmen wrote:

"Since the DLC came out" or "Since the last Arma update 2.04 came out"
when exactly did that start? So far it doesn't seem to be caused by Arma.

It is tied to recent Steam update. I guess they changed their Steam Cloud API and Arma needs to update it too.

Steam support won't help me, they keep refering me to Bohemia's support.

In T158403#2192726, @dedmen wrote:

"Since the DLC came out" or "Since the last Arma update 2.04 came out"
when exactly did that start? So far it doesn't seem to be caused by Arma.

"Since the DLC came out" or "Since the last Arma update 2.04 came out"
when exactly did that start? So far it doesn't seem to be caused by Arma.

I have the same problem. I had it before 19th May when i was on Steam Beta branch, but since i opted out of it things became good again. Until today.
Error started appearing today again, i guess this Steam Beta update moved into their stable Steam branch.

I have the DLC and get the same problem. Can't update any of my S.O.G. missions for anyone anymore. Hope this gets fixed soon.

I don't have the dlc, get the same problem, tried reinstalling entire steam and arma, restarted modem, disabled firewall, nothing helps.

Same issue and I am also not opted into Steam Client Beta. I have verified all files on both tools and Arma 3 and yet the issue persists. I have tried forcing an update in Steam but none are available in case the issue existed there.

If the ATGM in use is the Malyutka this could be related to the bug I reported yesterday wherein the AI does not fire the AT-3 at all.

I'm having the same issue and I'm not opted into Steam client beta.

Confirmed this is present in the Editor with just SOG PF running.

in the config files for almost all sog helos:
configfile >> "CfgVehicles" >> "vn_b_air_ah1g_04" >> "HitPoints" >> "HitEngine1" >> "name"
has the same string as
configfile >> "CfgVehicles" >> "vn_b_air_ah1g_04" >> "HitPoints" >> "HitEngine" >> "name"

Also, I can't use the designator screen to guide the GBUs or use the Bullpups

Also seems to apply to object 'land_vn_bagbunker_large_f' e.g [15556,13557]

To add to this I am also getting the following dump when trying to play another workshop mission: