After updating to Emby 4.8.0.26 on my Synology NAS I had issues with playback of a number of episodes using E4K installed on my rpi4. I did a database reset in E4K 7.x hoping that would fix the issue. After doing so all previously watched content is showing up as unwatched even though Emby shows the content as watched. I updated to E4K 8.x and reset the database. The result is the same.  Kodi Log attached with scan from after updating to E4K 8.x. kodi.log