When export using LRTExport Plugin, I set the destination folder at the drivers other than C, it would be fail and the log says like 'Error: Could not move file from C:/Users/xxx to E:/lrt_12', and if set the folder at driver C, it works. It seems plugin is written in Java and using a platform-dependent method, e.g Files.renameTo, to move files? That's just my conjecture, could you please check this issue?

Win 8.1 & LR 5, LRTimelpase is 3.4.1 and LRTExport Plugin is 3.4

Thanks for reporting, I'm aware of this bug and will fix it in the next version.