Righteous fire keep turning off

I have RF build, and

I was running maps fine then suddenly my Righteous fire skill was turned off

whenever an enemy hit me (my HP is full).

Tested like 10 times.

Your Sulphur Flask is enchanted to be used when charges are full, and has a prefix making it gain charges when you're hit. So, it activates when you are hit.

The suffix on it removes burning on use. RF is burning you, so it gets removed.

yeah I just figgured that out thx