Q: why is my viewer divided into two projects?

Post a screenshot.

Did you enter the precision trim mode?

Maybe you have the Event Viewer open with a similar frame showing on both:

In the above each have clearly differing names although it looks similar.

Left side is a clip from the Browser shown in the Event Browser, right side the Project Timeline Viewer.

See if Hiding the Event Viewer helps.

Otherwise post a screen shot as suggested.

Al

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