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Fixed setup issue in sim

That's what the weather does. If the weather changes then those who prepared for the correct conditions will be rewarded. Preparing at the wrong time or for the wrong conditions can be a disadvantage.

The simulator has an internal function to calculate the ideal setup based on the current weather conditions (obviously, since it would be totally inefficient for the web to provide this during a race). But this function was slightly out of sync with the code on the web, so all the values didn't always align exactly. Sometimes the sim would throw up an alternative ideal value for a given setting, resulting in occasional contradictions. This is also why it was inconsistent, because it depended on weather and other factors.

It's unlucky that it wasn't noticed sooner by more people, like during open beta, but it wasn't that noticeable until recently where the levels of cars become much broader. The setup page itself was correct, so the recommended values in practice remain the correct ones, in case you're wondering.