What happens when the data in an investigation do not support the original hypothesis?

It's alright because a hypothesis is just a prediction and it is a guess that you make about what's gonna happen. Just make sure ur doing the investigation and recording the data correctly to get the accurate answer.

An hypothesis is an educated guess based on preliminary research. What should go next if the collected data doesn't support the hypothesis is to do a second experiment. If the second experiment does not support as well, the hypothesis should be changed because of the conclusion