The links to the Genome Browser that appear in the tooltip follow the original unclustered order rather than the new clustered order.
Here is the tooltip for the first column when unclustered:

Here is the tooltip for the first column when clustered:

Note that the links to the Genome Browser are identical, instead of reflecting the new first column
https://xenabrowser.net/?bookmark=fced789eb9d2e5babc146a4aa7186b05