Bug: Composer not saving data

After publishing or saving a Composer page when you return to Composer the data/page attribute fields are empty though they are present on the page. If you save or publish from Composer again, those empty fields are written over as empty fields including the page name which then becomes problematic when searching for it in the sitemap. If you go to the Attributes section the data is present and everything is fully functional. At this point I have to tell my client not to ‘re-edit’ via Composer. Very awkward.

I’ve tested with all caching turned off including at the host, and the problem remains. I’ve seen historic threads about this with no pertinent solution.

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Closing this topic as it’s duplicated here: Bug: Composer Not Working