File extensions being shown in Pages and Numbers documents
Macbook Pro Ventura 13.6.9
Pages 14.1
Numbers 14.1
Recently some Pages and Numbers documents have been suddenly showing the file extension in the document's title bar and Finder window. I have verified that the "Show all file extensions" setting is off in Finder with a restart and have tried creating a duplicate document or renaming, where shortly after the file extension shows up again. I have opened the Pages document on the web version of iCloud but not the Numbers document. This only happens with certain Pages documents and all newly created Numbers documents. This doesn't actually functionally affect, it's just sort of strange to happen suddenly.
MacBook Pro 13″, macOS 13.6