Error adding more than one Wim to a USB Stick

I'm editing the bcd on an External USB Flash Drive. I am able to add one WIM entry. If I try and add an additional Wim entry, I get an error: An error occured while attempting the specified create operation. The specified entry already exists. Cannot create a file when that file already exists. I can delete entries fine. If I restore the bcd from a backup copy I can again make one addition before I get the error.

What version of EasyBCD is this?

You're right. Try this build.

That worked. Thanks!

You're welcome. Thanks for reporting this and your feedback on the matter