Adaptive Capability passive skill (Gemling Legionnaire ascendancy) prevents skill upgrades

Adaptive Capability (Mercenary - Gemling Legionnaire passive skill):
"Attribute Requirements of Gems can be satisfied by your highest Attribute."

However when using a level 9 Uncut Skill Gem on a level 8 skill it says: "Warning: Can't upgrade gem due to support requirements"

Lvl9 Flame Wall requires 72 Intellect, but my character has 130 Strength (highest attribute).
(if I unequip the skill I can create a lvl9 Flame Wall, but it duplicates so now I have a lvl 8 and a lvl9 Flame Wall)

Yep, same. Being unable to upgrade gems as gemling legionnaire is quite game breaking - cannot use jeweller orbs on gems because you can't upgrade them later and have to make a new gem each time for a higher level one.

Same problem, cant upgrade extra socketed gems. :(

+1

same