I had not tried to apply an FX until today. I'm getting no context bar for any selected FX. I do get a context bar with full controls for Adjustments and for Filters. In testing, once I have selected an Adjustment or Filter, the control icon for that Adjustment or Filter remains in the Tools bar, even when I tap on the FX panel and select an effect. And tapping on that Adjustment icon while the FX panel is active takes me back to that prior Adjustment or Filter. Is this a bug or a glitch in my system? I've not only restarted Photo; I've restarted the iPad. Neither helped.
I'm running Photo on a 128 gb AirPad2, latest iOS, if that matters. I did have an earlier issue that was corrected by deleting and re-installing Photo. I'd rather not do that but will if I'm the only one with this issue.