Spirit don't match

I'm finishing act 2 right now and I have 30 spirit from quest and next 33 spirit from item (so summary it is 63). Anyway I can't activate 2 first tier supporting skills (30+30) or 1 second tier (60 spirit). In all scenarios I got message about insufficient spirit.

I second this, while having exactly 30 spirit and wanting to turn on Arctic Armor (costs also 30 spirit), it pops the warning message that I have not enough spirit. Testing with Scepter (+100 spirit) showed that the spell requires 40 spirit, despite the tooltip saying 30.

support gems such as clarity and vitality raise the spirit cost of auras, so its no longer costing only the base cost of said aura. i can see that you have artic armour + clarity for instance, which ends up costing 40. I had this exact same issue and took a while to find the explanation. Although this is not a bug, this is good feedback since it shows that it may not be very intuitive for players.

Thanks for the explanation, taking a 2nd look at the gems I have noticed it is actually written there. So a little feedback for this would be that the resource costs of the spell should also be updated if the cost is modified in cases such as this :)