We successfully restored from 7-mode vol backups to cDOT vol using Networker 8.2.3.1. 7-mode was 8.2p6 and new cDOT cluster is 8.3.2p4.
Had to use networker cli though but so far all is successful:
"C:\Users\backupuser>nsrndmp_recover -s <networker_server> -c <netapp_7-mode_controller> -S <networker_SSID> -v off -m <netapp_cDOT_svm_name>::/<netapp_cDOT _svm_name>/<volume_name>/<folder> /vol/<netapp_7-mode_volume_name>/<folder>
syntax is nsrnbmp_recover -s BACKUPSERVER -c NETAPP7-MODECONTROLLER -S NETWORKERSSID -v off -m NETAPPCDOTSVM::/NETAPPCDOTSVM/NETAPPCDOTVOLUME/FOLDER /vol/NETAPP7-MODEVOLUME/FOLDER
where -c is the old netapp controller running 7-mode."