ToME: the Tales of Maj'Eyal

Below is a character pre I Can Carry The World with Striking Stance on.



Points in strength boost Striking Stance damage reduction as expected, as does lowering it.

After receiving +50 strength from I Can Carry The World, Striking stance stays the same:



It's possible this isn't a bug and that there's a hard cap, but it is not listed on the tooltip if so.

There shoudln't be any hardcaps, it could be also bug of tooltip.
Have you tryed turn it off an on again?

Yes, re-application does not change the output.

Str contribution is capped at 35 (not 35 Str, 35 points of flat reduction that happens like at slightly after 100 Str?)

You'll note that 64 is 35 + 82% basically which is what you get at TL6.5 in Reflex Defenses.