Description
When viewing trace timelines in a collapsed state, many requests seem to be ongoing and running for a very long time. When toggled open to show spans, timeline updates and request appears completed. When collapsed again timeline reverts to ongoing state.
Below are screenshots of a trace in open vs. closed state. The top timeline should match but appear as 6.87s vs. 189s
Open:

Closed:

Python, Logfire & OS Versions, related packages (not required)
