Invalid Dual sim separate ringtones no longer working

[Jules]

I used to have a different ring tone for each sim. An update on 9 February changed Sound and Notification on my phone - See photos below. I also lost the separate tones on my phone at the same time. No matter how I try to change the ring tones - both numbers have the same one! So frustrating when I can't differentiate personal and business calls. Any ideas on how to fix this? thanks