If you genuinely think that there was no miscommunication then that is fine, but given there are already areas of contention (status of Lebanon, Iran's ability to exact tolls, Iran's ability to retain enrichment capabilities), it seems that is optimistic.
If there are already areas of contention, then that should raise the specter of miscommunication as likely. Whose "fault" of miscommunication is irrelevant, but given how this entire war has been a somewhat of a comedy of errors, there should always be a high index of diplomatic inadequacy.
This can be explained by the fact that the real settlement details have yet to come, starting from Friday in Islamabad.
For now, all we really know is that the US officially accepted a very pro-Iranian "10-point plan" as the "working basis".