No idea at all what causes this.

Whenever I log on with Vrirkuk his armor class is -5 to -12 below what it should be. Everytime I log on I notice this. The amount of decrease to AC is always different.

Its nothing incredibly tough to deal with, normally if I equip/unequip a weapon, armor, or something it returns to what it should be. The only trouble is a few times in the past where I didn't notice it was decreased every time I logged in and wound up dead.

Fish believes it could be related to Tumble.

I'm leaning towards Tumble. Naga suggested logging out without wearing armor, then logging back in, then out, then back in with it.

This seems to have caused the AC to be reported accurately on the character sheet, but an AC Decreased Icon still shows up in the top right corner.

Definitly has to do with Tumble.

I had on chaim mail, put on some boots with +1 Tumble, AC immediately dropped from 16 to 12.

Peculiar. What are your sources of AC?

(PM me if you don't want to post them on the forums)

AC comes from Bonemail, Towershield, Darker Ring of Protection, Darker Natural Amulet, 5 ranks of tumble.

I've noticed the same thing, though not as severe with losing 5 to 12 AC.

I had an old pure fighter with 5 ranks in Tumble, one of the ones that died on the fateful Jake Gets To The Surface adventure, and for him my tumble ranks always added AC properly.

I have a new Rogue/Fighter who loses the tumble bonus to AC, though. By selectively removing his gear (Shield, Natural, Deflection, Armor), I figured out that the Tumble bonus is being treated like Armor AC, that is to say that it doesn't stack with his armor for some reason.

I know that it added correctly right after I bought my fifth rank in Tumble! I just don't recall what made the tumble AC bonus turn off in the following half hour.

Tumble has been nerfed so that people don't get an additional point to their AC because of their -mobility in combat- when they have an effective tumble score less than 5. (ie,with all modifiers and armor check penalties applied).

Cail gets the penalty - it always totals to a loss of 4 AC when he logs in, fully equipped in plate and shield. I just hit the shield quickslot button twice (un, then re- equipping the shield) which makes the AC calculate properly. Minus the tumble bonus.

Interesting Nerf.

Guess I'd best find myself some +tumble gear to go along with that platemail.

Kotenku Tumble has been nerfed so that people don't get an additional point to their AC because of their -mobility in combat- when they have an effective tumble score less than 5. (ie,with all modifiers and armor check penalties applied).

Cail gets the penalty - it always totals to a loss of 4 AC when he logs in, fully equipped in plate and shield. I just hit the shield quickslot button twice (un, then re- equipping the shield) which makes the AC calculate properly. Minus the tumble bonus.

Well aware of that. But its a pain with a character if you forget. I've died a few times forgetting about it. I also don't lose 4 AC; I sometimes drop from 17 to 11 or even 7.

I'm not sure what exactly is causing this, but the next time I get the mod I can add some code in to have it automatically perform the AC recalculation a few seconds after you log in, if that would fix it.

Okay, that fix should be in as of v764. If this continues to be an issue, please make a new report.