So seems like the problem is with CRS317-1G-16S+
We have one CRS317-1G-16S+ in center and three CRS317-1G-16S+ at remote ends, after 6 days from reboot we got port flapping - but not on all ports, we tried to change SFP+ modules, cables but no sense. After we changed from RoOS to SwOS on central CRS317-1G-16S+ log files of the remote CRS317-1G-16S+ (that are still running RoOS) are showing no port flapping after more than 8 days!
I confirm the problem with the CRS328 and CRS317 connection.
The problem is partially solved by the change of the CRS317 system to SwOS. But still Rx FCS Errors occur on the 10G interfaces.