When you "Filter by tags" to work on specific tracks, the completed status is not displayed for tracks that you have completed before maknig it confusing to understand which ones you have completed and which one you need to take. But when you go back to All then you are able to see the completed check mark against the ones you have finished.

When you "Filter by tags" to work on specific tracks, the completed status is not displayed for tracks that you have completed before maknig it confusing to understand which ones you have completed and which one you need to take. But when you go back to All then you are able to see the completed check mark against the ones you have finished.