Two base images and follow-up incremental snapshots

We setup an additional AppAssure/Rapid Recovery server at a DR location for replication. However, our file server (which is our biggest backup in terms of storage) will not replicate because the recovery points are too large.

After investigating I discovered that two base images were created for this VM for some reason. From the screenshot below, or if you can tell me how to check, which base image is safe to delete? Is the first base image in the list the one that the recovery points derive off of? Or is it the most recent base image? I need to delete one of them so that this VM can replicate to DR.

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