Thanks for the reply, but nothing in your answers addresses the main issue I raised... which is that the app has stopped functioning in a matter of minutes, and it did so with no app update or user intervention by me.
1. What I can see on a desktop's browser output isn't relevant. I'm using the Android app on my fully updated Nougat OS phone, and I'm not accessing and using eBay via any web browser on my phone.
2. I have made NO modification to the app (or my phone OS, or any other app in the last 48 hours or so), nor did I encounter the issue after doing any update to eBay's app. The 5.27.1.2 version that's currently loaded was working - and 30 minutes later - the 5.27.1.2 version was logging me out when doing the very same in-app function, with the very same items, and with the very same sellers, that were 100% functional just 30 minutes before. There's absolutely no need to diagnose or juggle app versions and reload something that never changed one iota.
As a coder myself, I suspect that some piece of code running on eBay's servers was modified and made live. Whether it was a basic/core function, or an API call, or a modification to an underlying CDN linked JavaScript's variable that was changed... the end result was that it affected the app's instructions on what to execute when the in-app link was tapped.
Whatever that change was, It caused the 5.27.1.2 version app to mis-display data, and alternately log me out when tapping the link, when it should have switched to a new screen with it's display of the drilled down data of an individual feedback response. It was immediately repeatable, and it did not revert back to it's earlier behavior of operating normally. No amount of cache clearing - at any level - changed the results. No other functionality that I'd normally use as a buyer in searching for and/or bidding or buying seemed to be affected.
