Why "PRJ_VERS" EFB created with a name “PROJECT” inside a DFB "CM_EXCHANGE" is omitted at application import from Control Expert V14.1 to Control Expert v15 SP1 ?

Issue:
A project is created in CE V14.1 in which EFB “PRJ_VERS” is created with a name “PROJECT” inside a DFB “CM_EXCHANGE” (refer the screenshot below)

When this project is exported and opened in Control Expert V15 SP1, this EFB “PRJ_VERS” is deleted (refer the screenshot below) and project couldn’t be rebuild in CE V15 SP1

Solution:
There is a name conflict with subfield "PROJECT" of type PRJ_VERSION inside DFB CM_EXCHANGE. We cannot create such instance normally, since "PROJECT" is a reserved namespace.
User should rename the variable before the import or create a new variable. Instead of naming "PROJECT" to PRJ_VERS, use other name.
If EFB “PRJ_VERS” is renamed to any other name except “PROJECT” (for example “test”), this EFB will remain in CE V15 SP1 after the import. (refer screenshots below)

After import in CE V15 SP1:

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