Branching not working at one point

Hello, 

I created this form https://forms.microsoft.com/Pages/DesignPageV2.aspx?subpage=design&FormId=NFOKnnxJik2nl3mXz4zHYw_jvgrefqpEmsFlrPNVrRdUREhGRzhINjQzUDI5RkhURlZWWDhQRU1UUC4u&Token=fa8e6c54465b4268bd2771186a1db696 

The branching works throughout the form until the first time you should be redirected to Q12 (Do you wish to assess another IRIS portal?) If they click yes, they should go back to Q10 - instead, it only offers the respondent to submit the answer. 

Can you help? Thanks in advance!