Thanks for reporting!
I'm extracting two different parts from the discussion:
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The result when querying Tag Sources for single releases is missing an entry for the track length in the tracks list. → This is the bug and I'll fix this by adding a corresponding entry to the tracks list.
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The result doesn't show the Title and Track# in the Title metadata list, which makes it more difficult than necessary to check if it's the correct title (scrolling the Album metadata list is needed instead, where the fields are to be found). → I'll add Track# and Title (if available) to the list of Title metadata.