"ACE version mismatch error," when correct version clearly installed?

[Corman]

So here's one for you; I've been getting this error screen since OSUT. The only version of ACE I have ever used has been the one bundled into the 506th v1.5 mod pack. This is what I do; I download the mod pack, I unzip it and put ACE into my ArmA III root directory, I activate said mod using the launcher, I log on to any 506th server... I get error as stated. Sooo am I missing something here? if we're all getting the same mod files from the same source, then how is it possible that I'm seeing this? My ACE is not broken, I can preform all ACE interactions and they can be done on me. I have downloaded and re-downloaded ACE (from the link provided in our forum) reinstalled and still same error.

Notice the fascinating messages in the lower left. (never mind the pipe error 6 on the right, that's because i didn't have TS on at that moment)

I am totally out of ideas on this...

[MSG (Ret) Main]

Check your mod lines and use your CoC.

That is not an ace error. That is an ace module put on the mission file. Those are pbos are from Kunduz. A google search would have told you that. Only approved mods are allowed on official servers. These are issues your TL should be able to answer for you.

[SSG (Ret) Kang]

As SFC Main says, the server is running Kunduz in its command line and you're not. Which is good. Unless you see AiA_xxxx or ACE_xxxx or RHS_xxxx you're fine