Yes it seems to be Vcenter issue. I can reproduce problem with 6.7.0U1, while 6.7.0d works fine.
Hi,  Trying to setup vrpa cluster on esxi 6.7U1, installation ends up with an error: could not create virtual repository.   And when I check logs, i see in server.log:  2018-10-27 18:01:22,237 [CommandWorker-13] (BaseAction.java:42) ERROR - CreateRecoverPointDeviceAction Failed.  com.emc.recoverpoint.connectors.actions.infra.ActionFailedException: API Version <6.7.1> is not a number, cannot get virtual disk type   Maybe there are any updates comming to support newest ESXi?
RP for VMs 5.2.P1 and ESXi 6.7.0, 10302608