I think I found a Bug with Support Skill Gem ToolTips... help confirm please

Hello Folks

I noticed something a little off with the Tooltips in regards to the Support Skill Gems. I will try and explain best I can with one example but it appears to be all over the place...

I have a level 35 Warrior with the "Magma Barrier" skill. I have a Skill Support Gem for "Fire Infusion". If I hover over the "Fire Infusion" gem in my inventory, the ToolTip has a red X for "Magma Barrier", meaning no effect if slotted. I noticed that "Fire Infusion" is the recommended Support Gem though which was confusing. I checked my base Fire Damage for the "Magma Barrier" Skill which is 204-339. I slotted the "Fire Infusion" support gem into "Magma Barrier" and my fire damage went up to 258-436.

This means despite the Tooltip saying there was no impact on the skill, it does in fact impact it.

I have screenshots to help show the issue, but I dont know how to upload them.

I believe Magma Barrier has 2 skill parts: the barrier/buff part - which is not affected by Fire Infusion - and an Magma-Infusion part that is affected. The second part has a different name and for that name the tooltip should show that it can be supported.