@loekwoudstra, I understand. Try with my note: Make clone from updated WP+WPClone no problem with that. But where you restore the clone(into new server/domain) you need to do that with WP 4.7 or lower version, but not in 4.8. I had same issues with 4.8 but found no problem with 4.7 restoring clone file. Let me know what happened then.