ERROR #5863 Another user has 'Title.LUT' open for editing.

Hi,

I have an odd problem that occurs when I'm trying to import lookup tables in the XML format into Studio.

I store my files in in C:\CodeRepository.

I can manually import these lookup tables using "Import local..." option in the InterSystems Studio. 

However, when I'm trying to import them using command in terminal: do $system.OBJ.LoadDir("C:\CodeRepository\","ck")

I'm getting the following error:

Loading file C:\CodeRepository\Title.lut.xml as xml
ERROR #5863: Another user has 'Title.LUT' open for editing.
  > ERROR #6315: Errors reporting importing XML subelement in file 'C:\CodeRepository\Title.lut.xml' at line '3' offset '44', skipping this item.

It seems like there is a process that is locking the access to these files in Studio. Please note that Title.lut is not currently present is Studio. 

I believe I should remove a lock from the global holding these lookup tables, but I cannot find any lock or process related to the lookup tables. 

Please help.