Woocommerce Product Gallery / Ansicht Bilder Varianten

Hello,
since the last Woocommerce update, including the Woocommerce database, the Product Gallery view has stopped working properly. The individual views of the variants are displayed as thumbmail. The picture in the zoom view is then correct again. Does anyone know why this is. That would be great. Unfortunately, I can not get on with this problem.

many greetings
Bernhard

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