Having just read this last post, I've uninstalled the app then had a look at what was offered in the web store. Only version 8.5.1 was offered, having installed it, the identified issue is now resolved.
It does indeed look like version 8.7.0 has been retracted.
So to be clear the problem for me was resolved, by uninstalling, then reinstalling the earlier version (8.5.1) which was the only one offered by the Play store.