Crit chance not being calculated correctly in character sheet

When I equip a weapon with extra base crit onto my character, my base crit in my character sheet goes up by my main hand critical chance stays the same. Everyone I have asked seems to think the main hand critical chance on the character sheet is showing us our actual crit chance after all calculations, so why does it not change when I add more base crit to my character?

Either this is a graphical bug, crit chance is being calculated wrong, or for some reason we are being showed our base crit in the base crit line and our additive crit in the main hand critical chance line, and not being showed our actual crit chance, is that correct?

If this is the case then it still doesn't make sense, because when I add or remove 10% crit chance from my tree the percentage chance to hit with main hand changes by 3.2%. With my 18.12% base crit, an increase of 10% chance to crit, if there were no other crit rolls on any of my gear or passives, would be:

Base crit * increased chance to crit

18.12 * 1.1 = 19.932

This gives me 1.812% more crit chance, which is only just over half the change I saw from removing a 10% crit chance passive, and I have closer to 100% crit chance from passives so this would make then actual increased even smaller from diminishing returns.

For reference I am an amazon with the accuracy to crit ascendency node, this may be what's causing the issues? Can anyone else test this to confirm with amazon and with another character?

I have noticed the same sort of issue, my tool tip crit chance shows 50.4% crit when using a spear with a base crit of 5%. I equipped a spear with 7.5% crit and nothing changed. Still 50.4%. Even when I allocate the notable Struck Through which is suppose to give 1% to crit chance it doesn't change. But small nodes with %crit change my crit far more than they should. I imagine it has to do with the overflow accuracy being crit but I can't figure out what's really going on.