We checked your account and it looks like the restriction needs to be updated. To water only on Tuesday, Thursday and Saturday, there are two restrictions needed:
1. No watering on Monday, Wednesday, Friday and Sunday. That is for the whole day. So a restriction needs to be created for that with time frame set to "all day". I think that is what is missing here.
2. No watering on Tuesday, Thursday and Saturday between 6 a.m. and 6p.m.
Please let us know if it works.