It's not the first time either, with pollsters missing Brexit, and the election on Donald Trump.
Polls have long been a way to check the mood of the nation, and sometimes important decisions are made on the basis of them.
But now you could be forgiven for thinking we should give up on them entirely.
Herald reporter Damien Venuto has investigated this, and the answers are fascinating.
We discussed the many elements that can make a poll go wrong, and how the experts want to change things.
For the interview, watch the video podcast.
To read Damien's full story on the issue, click here.
If you have questions about Herald investigations, or want to stay up to date on social media, you can find host Frances Cook on Facebook here, Instagram here and Twitter here.
