I'm sure I'm missing something really basic here, but I do seem to be missing it. Looking for any clarification anyone can offer, please. I'm planning a DONE4 with the following routing:

SFO - SYD
SYD - LHR
LHR - IAH
IAH - MIA
MIA - SEA or SFO

I'm told this isn't possible due to the following rule:

"Two stopovers of greater than 24 hours permitted in the continent of origin and only one permitted in each direction within the country of origin. You can only make an extra stop if it is less than 24 hours."

But it seems to me that I'm not violating the rule...I have one stopover in Houston and a second in Miami. Appreciate any help from the experts out there.

PS - Yes, I realize this is a woefully short trip for a OWE ticket, but it's for biz not pleasure.