Draft page forgets parent and loses meta

I rarely use drafts so forgive me if this is a feature…

I have twice come back to my Manage Page admin screen to find a draft page I created suddenly listed at the top level instead of being under the first level sub-page I designated. When I went to edit the page, I also discovered it had all the metas (custom fields) I had created listed (as keys in the custom fields section) , but with empty contents/values.

Since I successfully re-entered the meta values the last time this happened, and re-selected the parent, and was able to keep editing the page by tweaking things and hitting “Save”, I’m thinking this problem doesn’t show up immediately for some reason.

Has anyone seen it? Anyone feel it’s not correct behavior?