I’m receiving this message recently. It is new as prior to a few days ago I could send pictures.
Pixel 9, Android version 15, RingCentral App version 25.2.35.450029
I attempt to send any picture, either from gallery or taken directly through the app this message is displayed. This is a new issue and I’m trying to figure out if this is a setting that changed or if there is some new restrictions I’m unaware of.