Missing custom dialog type msg

[NewsArchive]

Getting a new error re: missing info on a custom dialog despite no changes.
Im on the current build. The dialog is one of the wizard dialogs, which was
added to the project by SB5 rather than by me. The dialog has had no
customization.

Also got an odd compression message, which occurred after a reboot and
before any program could have used the file named in the message.

See attached gifs.
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Mark