New bug: Scanned pages in Notes app disappear

I wanted to update but I don't see an edit button. So the bug is actually in how the PDF previews in notes. Generally, when you tap the three-dot menu, it shows you *all* the PDF pages as tiny thumbnails. But, in the PDFs I'm talking about, it shows just one page and that's all you can view on your phone. It also shows that the file is very small (about a page worth). But then I realized that, if you actually send the PDF to your computer, everything is there and the size is correct. So the issue is actually in how the PDF previews/renders in Notes: You can only see one page and it shows just one thumbnail. But, oddly, the whole document opens on the computer. This doesn't happen with every scan but seems to happen intermittently (but often). Also, when I have this happen with a certain set of documents, it happens again and again with the same set. Repeated scanning just repeats the issue. It's really weird. I've been using Notes to scan documents for a long time and never run into this until recent weeks.

UPDATE: I've found that, even though the file size appears smaller than it should be and even though only one thumbnail shows when you hit the dots to expand IN the Notes app (where you can usually see all the pages individually), once I send the file to myself via iCloud, the PDF generally has all the pages. This just seems to be a weird glitch that you can only see the first page and thumbnail on the phone; but if you send it to yourself on the computer, all the pages are there. Annoying and a bit stressful (because I tend to do these in batches, and it slows me down to check files by airdropping them), but at least the only real problem is the phone view. This is also totally unpredictable and intermittent, as far as when it only shows the first page. But I don't have any faith that they will fix it. (UPDATE: Oops! I guess I basically said this before but it seemed to bear repeating.)