I have the power bar filters configured to not show any power bars except for the healer roles. The only way I can get the power bars for healers to show is if I select the DPS sword icon, even though all healers have the healing role selected.

It works on my end.
Any lua errors?

Ya I don't know, the only way I can get it to show up is to select the DPS role icon. Healer role won't show the power bar at all. The power bar shows whether I'm DPS or Healer Role, when selecting the DPS role filter.

Here it is in action. Power bar doesn't show while in healing role.

That's weird. Never heard of this issue from others.
In order to fix it, I have to reproduce this bug.

Could you send me your Cell config file?
World of Warcraft\_classic_\WTF\Account\XXXXX\SavedVariables\Cell.lua

Just sent it to your email.

Thanks! I got it fixed.
Caused by Role Icon indicator. Nothing wrong with your config file.
I'll release it soon.