I have noticed that if you choose the Repair All Armor downtime action for a Long Rest, it does not actually work. It leaves the Armor just as damaged as it was before.
Also, I don’t know if this is a bug but I was wondering why I am always given the option to reroll. There is nothing in the characters I created that give me that ability that I’ve been able to find, so I was wondering why that option is there.
Looking this over it appears that the Repair All Armor downtime action can also be used to repair an allies armor. Since there’s no way to indicate that you’re choosing to do that and there’s no way to target another player’s sheet you instead need to manually update your armor value when choosing that option.
As for the reroll button always appearing it’s part of the dice roller itself and as such will appear for all characters regardless of if you have a character option that allows you to reroll dice.
Thank you for responding quickly. I still question the behavior of Repair All Armor for a Long Rest, because if you choose Repair Armor for a Short Rest, it does repair your armor, even though you can also repair an ally’s armor on a Short Rest. The behavior between the two is different. You can also choose to Tend an Ally’s Wounds for both a Short and Long Rest, but in that case it shows a checkbox to Tend to Ally so it knows not to apply the healing to yourself. Repair Armor for both Short and Long Rest should work the same way as Tend to Wounds.