MBP 15 2017 + Mantiz + RX580 + Win10 (updated)
Noticed, that many people having issues with similar configuration in bootcamp - error 12,43, etc.
Might my experience will help somebody.
At first try i installed drivers for dgpu and then egpu - as a result i see only black screen for all 3 monitors - no matter what i do. Only windows re-install helped.
- fresh bootcamp install,
- DDU for remove bootcamp drivers for RP560
- connect egpu (RX580)
- install latest amd drivers
As a result everything seems to be fine, except RP560 with out drivers, but this is not too critical.