The problem in early 2018 was for second generation Ryzen processors. The 2000 series Processors were incompatible with the motherboard BIOS that it was shipped with.
So with your first generation R5-1600x, you were never at risk. But you will need to update the BIOS. There have been a very many BIOS updates since your processor was released.
At this point, all Ryzen motherboards should be updated on install and periodically afterwards. This is to improve stability and fix problems.