Stats from equipment won't let me equip?

[Morikal]

I have an armor that requires 20 strength. I have 12 base, 14 current.

I swapped out some items so that I have 20 (and then tried 23) strength. The only other requirement of the armor was a point in armor training, which I have. All requirements show green on mouseover.
But when I try to equip it I get a message saying not enough stats.

Do bonus stats from other equipment not count? Or is this a bug?

[breadsmith]

As of 1.30 you can no longer use equipped items to meet the prerequisite stats for other items.

[Mordy]

Well to be exact, you cannot equip an item if the one it'll replace is required to get the needed stats.

You can still put on a necklace of +10 Str, put on that heavy armor, then remove the necklace and be fine with it.

[twas Brillig]

I'm not sure it helps you here if it doesn't work with 23 strength, but for other people having similar problems: skills that give you bonus stats, especially as a percentage of other stats (e.g. the skeleton racial, Augmentation), are often buggy and give less stat than they display. Specifically, stat requirements round fractional stats differently than the stat display.

[HousePet]

Percentage boosts should be all fixed now.