Don’t worry – it’s not!
Assuming you are using an updated version of AnkiDroid that supports Easy Days, and you have now turned off the Helper’s “reschedule on sync” functionality – that would make AnkiDroid responsible for doing the Easy Days scheduling on its own. I wonder if this might be a syncing issue.
There were some reports early on that Easy Days settings weren’t syncing across devices . Those seem to have worked themselves out, but that doesn’t mean they were necessarily “fixed”!
I can’t tell from those reports whether the settings actually looked incorrect on the other device (buttons/sliders were wrong), or if they looked correct and were simply not being applied. Have you checked through the Deck options on AnkiDroid [long-press on the deck]? If it doesn’t look correct – bingo! [And please let us know!]
If it looks correct, try setting it to something else, saving, and then setting it how you want it and saving again. Running “apply easy days now” through the Helper add-on to establish a baseline was a great idea, so do that again. And then see if it is working better after a few days.
If this does improve it, I hope you’ll let us know because clearly there’s an issue that needs to be looked at with how the feature is syncing!