Invalid on disk Structure

I have a Notes Database and template that I am working on. Whenever I update the database from the template, I get an error only on certain design elements. (i.e. a couple of views). The error reads: “This database Cannot be read due to an invalid on disk stucture”. I can click OK and the view comes up. I am just curious what this error is.

Subject: Invalid on disk Structure

Ryan, try compacting your workspace… that usually fixes this error.

Subject: you may need to delete the icon too

I have seen the icon get corrupted way too much in R6, I delete the icon, compact the workspace and add back the icon. Other times, I have had to pull all new replicas.