We now have the CRS317 running SwOS 2.6, and the CCR1072 running RouterOS 6.41.rc47.
On the CCR1072 we have tried auto-neg *and* manually setting (in console only, as there is not 10G option in the Webfig) to 10G... still not working.
There is no option to FORCE the CRS317 to 10G on that interface.
Basically, we have tried auto-neg on both ends, but won't come up. If we set both ends to 1G/Full, we get UP.