Translation of custom color swatches not correct

My online shop is a multilanguage store. I use multiple custom colors as product option. Every color has a translation, that I added manually. Until now, everything seemed to work. But now for new products, the colors are not being translated anymore. For example in this product:

https://patis-universe.com/en/products/kleine-kumikobox-aufbewahrungsbox-mit-deckel-im-japanischen-stil?variant=49131265327436

The basic language is german. The description is translated correctly, but the colors are still in german. Other products are fine though, but if I add a new color option, it’s wrong too.

What can I do?

Thank you