"Resources" are not syncing ☹️

Although Notes created on my desktop are syncing across to my Android devices via Nextcloud, the Resources aren't. I only have iconic placeholders where images etc should be.

In Configuration, I have "Attachment download behaviour" set to be "Always"

On Android, I'm using Joplin 2.8.1
On my Mac Big Sur desktop, I have Joplin 2.9.17 running

If somebody could provide a bit of guidance in this regard, I'd be very appreciative!

I'm having the same issue on iOS. Re-installing Joplin fixed the issue for a few weeks, but it seems to be happening again...

I'm syncing with OneDrive and using Joplin 2.10.2 (TestFlight).