Mailings are missing from Find Mailings screen on multisite
For non-administrators on multisite, the find mailings screen will stop showing mailings. If I switch to that user while on that page > run cv flush and then refresh the listing shows up.
However, running cv flush alone does not bring the listing back. I'm not sure how to debug further. In trying to figure out when this started, I see my first report of it on 9/9/2020 if we can trace it to a civi upgrade.