Remove all "new" flags - expected behaviour

Environment

Android version: 12
OS version: 4.14.113-24166302
AntennaPod version: 2.6.0 (from PlayStore)
Model: SM-G973F
Device: beyond1
Product: beyond1lteeea

No crash report recorded

Expected behaviour:
→ Subscriptions
→ any subscribed podcast / context menu
→ remove all “new” flags
→ podcastpicture does not show “new”-counter overlay anymore, AKA set to 0

Current behaviour:

→ remove all “new” flags
→ “new”-counter overlay remains unchanged

First occurred: (e.g. about x days/weeks ago)
observed this some weeks ago, behaviour holds on

language settings
Occurs in German and in English