Please help us help you and fill where relevant:
LimeSurvey version: LimeSurvey Community Edition   Versão 7.0.1+260611 
Own server or LimeSurvey Cloud: Own server
Survey theme/template: Bootswatch
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Hello.
Since the last update, I have been unable to edit the structure of any of my surveys. I have tried both the new and classic versions, but the issue persists. Is there anything I can do to regain this functionality?
Many thanks,
JR

What do you mean with "editing the structure"? Change the order of questions and question groups? Which screen are you referring to?

I mean, making changes to the survey's structure, e.g., correcting a typo in a question. When I click on a question to edit it, nothing happens.