Error at 99% update
 

File: map_befallen_3.dds
mscorlib
at System.IO.__Error.WinIOError(Int32 errorCode, String str)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode)
at WindowsApplication7.DownloadWorker.DownloadFile()The process cannot access the file "E:\Program Files\Sony\EverQuest II\UI\ProfitUI\images\maps\map_befallen_3.dds" because it is being used by another process.
File: map_blackburrow_1.dds
mscorlib
at System.IO.__Error.WinIOError(Int32 errorCode, String str)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode)
at WindowsApplication7.DownloadWorker.DownloadFile()The process cannot access the file "E:\Program Files\Sony\EverQuest II\UI\ProfitUI\images\maps\map_blackburrow_1.dds" because it is being used by another process.
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I would like to add that there was no other process using EQ. Only running application was map updater.

And another question- if i change my UI can i use EQ Map folder from previous custom UI?

A. Most of the time just rerunning the updater will fix this issue.

B. Yes you can.