Fire Totem Support Gem no longer supports

I’ve been using a fire totem support gem linked to my fire totem gem enough to level them both past level 13. Suddenly, my fire totem is no longer supported and I can’t cast more than 1 totem anymore
This significantly hinders my characters strength, and is out of nowhere
Literally the past 25+ levels I’ve been casting 3 totems at once, but now it doesn’t work and is no longer supporting!?
Again, they’re linked to each other, so that’s not the problem

To make it easier to understand and have a look at your setup, it would be helpful if you could make your characters here in your profile public and let us know about what character we are talking about. I am sure, there is some explanation and someone can help you.