"Add to Safari Reading List" broken when invoking from third-party apps
I guess I had originally put this in the wrong forum category.
I recently decided to use Safari Reading List as my read later service, which I have done in the past quite successfully. I noticed, however, that pages I was adding from Reeder on the Mac were not making it to the Reading List. It's all working fine from iOS devices.
I tried some other third-party apps and they also failed to send pages to the Reading List, although notifications indicate that they think they have succeeded.
I've tried restarting the apps, restarting Safari, restarting Mojave, etc. Nothing works. I don't see any settings that would affect this behavior. I've tried shutting down any browser extensions that might have an effect? No joy.
Any ideas? For now I'm working around by adding the pages from Safari itself.