m0u53r
Hello, thanks for your feedback!
Do you use the latest Beta version 1.1.2?
If you add custom thumbnail for your video, the thumbnail will get stretched when you play the video from Plex. We recreate the issue and we'll fix it later.
Do you click the "pen" icon in the bottom left of the video and edit/change the poster via Plex? If so, we also reproduced the issue in v1.1.2, and we'll fix it in the next few updates.
Regarding the search function, we plan to add this feature in the future. Thanks for all your suggestions and feature requests!