DBCC SHRINKFILE works with file_id but not with logical name
Revised my answer, testing did not show as a valid reason for it not to work. 

Couple of things to check


Are there leading or trailing spaces in the file name? 
Did you recently upgrade to SP3 by any chance?


Try switching the recovery model from full, to simple, back to full again. There is an apparent bug when updating to SP3. Changing the recovery model will reset the log sequence number and for whatever reason that clears the issue, at least temporarily.

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