Ryzen - Mixing RAM sizes

[snips86x]

I currently have 2x8gb 3200 Corsair Vengeance RGB and was looking add an additional 32gb at the same speed. I would therefor have 48GB (2x16gb & 2x8gb).

Has anyone tried or are currently running with mismatched sizes?
Do you forsee any issues?

 

[snips86x]

Hmmm...might just grab a dual channel set of 32 then.

Thanks for your input, appreciate it.