I got a Ryzen in Feburary 2020 and can confirm this is STILL a problem. I made sure to update my icue as well, but it's still doing this insanity.
These are both with Discord, Firefox, and Foobar2000 running as well.
Without iCue.exe running: 1.36754 average Core Voltage
With iCue.exe running: 1.43398 average Core Voltage
Average Core Clocks Without iCue.exe in Mhz(10 minute parse, I took a screenshot rather than scrolling and checking so I didn't see Core 8's number):
1081
890
875
818
773
855
1304
????
Average Core Clocks With iCue.exe in Mhz(10 minute parse):
1355
1151
1282
1118
1084
1150
1501
????
The difference is even larger if I were to turn firefox,discord, and foobar off but I can't sit here for 10 minutes without my music running. Either way, the difference is pretty clear. It's ALWAYS over 1.4v when iCue is on, creating extra heat and boosting too high too often. Only an issue with Icue. annoying