why Lost episode open progress dashboard premiere pro

Just guessing:

If the problem is that you don't see your timeline, check the Project Panel for the sequence and double click on it to open it.

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

<"moved from using the community">

So that the community is able to help you more:

1. Describe your issue in details

2. Share your system specs and Premiere Pro version