Shaper of Storms not adding shock effect from local skill

% Increased Effect of Non-Damaging Ailements on Enemies granted by Unbound Elements seems to not properly work. When the gem is off, I have a Shock Effect Modifier of x 2.1 and shock effect of 52.5% (Max shock is 65% due to mastery). When the gem is turned on, the Shock Effect Modifier correctly goes to x 2.64 but the shock effect stays the same.
If I use the same wording of the gem in the custom configuration everthing works as expected.

With gem off:

With gem on:

With custom config (54% increased effect of non-damaging ailments on enemies)

I know the gem says it affects only supported skills so I made sure that I selected the correct skill in the calculations tab. This error seems to be present in the new 3.26 tree only, as I made the PoB yesterday with the 3.25 tree and there it works as expected.

Reproduce the issue in the 3.26 tree with Unbound Elements enabled and the affected skill selected in the calculations tab. Compare the gem's local-skill wording with the equivalent custom configuration and the working 3.25 behavior. Done means the supported skill's shock effect reflects the increased non-damaging ailment effect while the gem is enabled.