App designer in R2021a doesn't start or gets stuck

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Thomas Hermelin on 21 May 2021

Edited: Thomas Hermelin on 21 May 2021

Hello,

I got a new PC and reinstalled matlab R2021a.

The App designer doesn't start, so I can't edit the app I am working on...

I tried to remove the folder in ...\AppData\Roaming\MathWorks\MATLAB. This didn't work.

I also tried to copy this folder from my former PC. It worked once....

What can I do ?

Thank you very much

R2021a

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