Hey there, Paper Maid.
I've checked our file and didn't see any issues about BAS journals. I'd like to know more about this. Did you encounter any error messages? Are you unable to reconcile?
In the meantime, we can isolate if this is a web issue by doing the basic troubleshooting steps. First. open QuickBooks Online using an incognito window. If you're unable to encounter any issues from there, go back to your main browser and clear the cache. It's best to clear them out from time to time. This will allow the browser to function properly.
Moreover, using a different web browser fixes issues like this (Google Chrome, Internet Explorer, or Mozilla Firefox).
You can always get back to this thread with more information. We're just around.