[Xposed Framework Modules] kindall:
Problem with Back action

I have recently begun using this module and it's the only gesture module I've found that can overlay the on-screen navigation buttons, which allows me to add swipe gestures to them. This goes a long way toward making up from the various swipe-up actions I used to be able to add in custom ROMs before they removed that in Lollipop, plus lets me add even more (swipe left on Back to kill foreground app? yes please!). I love the configurability and flexibility of all the options, it's almost Tasker-like (and responds faster than Tasker for a lot of the triggers). After playing with the module for an hour I shelled out for the Pro version. I have version 2.8.1 installed currently.

The trouble I'm having is that the Back action seems to stop working after a while. The amount of time varies. As I mentioned, I am using the module to add capabilities to my on-screen navigation buttons. That means that I also need to program the gestures in these areas so that a simple tap performs the same action as the navigation button would, so I have set the Bottom Left gesture area to send Back on tap. But after some period of time it just stops responding and I can't go back anymore. It doesn't seem to matter which app I'm using, either.

Here are some things I have tried as workarounds.

* Set the Tap action to Default instead of Back, hoping that it would pass the tap through to the real navigation button below the gesture area. But it doesn't appear to pass the tap through if I have any swipe actions attached to that region.

* Use Inject Key Event action to sent the Back key, instead of using the Back action. This didn't help.

* Use Tasker shortcut or a command line to send the Back event. Either is very laggy unfortunately and I wasn't able to tolerate using the phone long enough to see if that actually addressed the issue.

* Assign the Back action to the Tap event on the low-priority Bottom Edge region, and set the Bottom Left region tap to Default so it would pass through. This didn't help either.

* Assign a "backup" Back action to another gesture (I chose swipe left on Bottom Center) so at least I'd be able to go back when the main Back button stopped responding. Oddly, when the main Back action stopped working, so did the backup Back action!

* I discovered that if I went into the app and turned gestures off and then back on, the Back action would start working again. So I actually made the tap trigger a multi-action: Back, then turn gestures off, then turn them back on. This didn't help. (I also added delays between turning it off and back on. These did not help either.)

* I disabled a bunch of my Xposed modules to see if there was a conflict. (Not all of them... yet... but I might get to that stage soon.) At first I thought I had nailed down the culprit but I think it was just the fresh boot that made it go longer without a problem than I expected, because Back did eventually stop working.

Right now I have actions set up to turn gestures off when the screen is turned off, and back on when the phone is unlocked (so that the gestures aren't active on the lock screen), so my current workaround is to turn the screen off and then unlock. But this is inconvenient...

Other actions don't seem to have those problems, or maybe they would but I just don't use them as often as I use the Back button. Hm?

I have an HTC 10 with Viper 10 ROM 3.5.0 (Marshmallow -- waiting for Xposed before moving to Nougat) with Elemental X kernel. I also have a fairly involved Tasker setup and a lot of Xposed modules.

I understand completely if you consider my setup so complex that it is essentially un-troubleshoot-able, but if you have any ideas as to what to try next, I would welcome them.