This is the result using xmr-stak, seems more stable that way, but still, there is this 1 card that acts up.

HASHRATE REPORT - AMD
| ID | 10s |  60s |  15m | ID | 10s |  60s |  15m |
|  0 | 534.4 | 579.1 | (na) |  1 | 416.3 | 458.7 | (na) |
|  2 | 1036.9 | 1035.5 | (na) |  3 | 819.3 | 849.3 | (na) |
|  4 | 1016.8 | 1017.8 | (na) |  5 | 805.9 | 807.8 | (na) |
-----------------------------------------------------
Totals:   4629.6 4748.2 (na) H/s
Highest:  4914.2 H/s
[2017-11-29 10:33:54] : New block detected.

Did another "wipe" of drivers and reflashed the stock Vega 56 bios.
Until now the driver/cards/miner haven't crashed, but we'll see how long it lasts.

Funny thing is if I reboot, the card acting up can suddenly be GPU1 or GPU2.

Worth mentioning, with the previous motherboard I didn't get the Vega card operational unless I had a "dummy plug" in the display port plug on the Vega, so thats still inserted now on the card connected to (via riser card) the x16 slot closest to the CPU.