We released a fix in our release this morning (2018-07-24). In order to get things ordered correctly, you'll need to open your rule, make a change (you can change the order, then change it back to where it was, that counts), and save the rule.
We are working on an automated process that will fix this automatically for all affected rules, but that will probably not make it into a release until next week, so those negatively impacted can fix it manually now.
Technical details for those curious: under the hood, each action in a rule has an order. There were some scenarios where the order was not being saved correctly. Sometimes it didn't matter, and sometimes it caused your actions to appear in a different order than they were when you saved them (if you opened the rule again after save). The fix waits for a rule to have a change, then when it is saved, it will normalize the order of all rule components, giving them each a new order value based on what you've specified in your rule.