Playback History duration

App version: x.y.z (state whether from Google Play/F-Droid/Custom built APK)
version: 2.0.3 (Google Play)

Android version: 5.x (Please mention if you are using a custom rom!)

Device model:
moto x4

Expected behaviour:
I switched over to AntennaPod about six-weeks ago (from another non-mainstream podcast listening app that I’d been using for years) and have found to be much better than anything else I’ve found and I really enjoy it. One of the features I was most excited about what Playback History; however, I am not sure if I understand how to use it or set it up. I had thought it would show all the episodes I’d listened to. And maybe it does but I set it up wrong.

Current behaviour:
When I look at the Playback History, it only goes back about a week. There are episodes in there that were released over a week ago (eg early December) but it doesn’t appear as though anything I listened to before a week ago is shown there. I don’t see anywhere to change the settings and I have not selected the Trash button (I usually like to poke around a new app and try the buttons but a Trash button doesn’t always have a safety (“are you sure you want to do that”) control and might not be reversible.
Is there another setting that affects Playback History?

First occurred: (e.g. about x days/weeks ago)

Steps to reproduce:

  1. This
  2. Then that
  3. Then this
  4. Etc.

Environment: (Settings you have changed (e.g. Auto Download). “Unusual” devices you use (e.g. Bluetooth headphones). Did you select another media player?)
I haven’t changed any history settings that I am aware of and I don’t have syncronization setup (I have been intending to do it but haven’t setup a gpodder account and now the site has a 502 error).