Magento Imported Products shows wrong in Frontend

Job ID: 32936206

Budget: €30 – €250 EUR

We have a problem. We have imported articles, which are displayed correctly after indexing. After a certain time, the articles are displayed incorrectly in the frontend.

For example, an article has the category "Gläser" in the backend, but is displayed in the category "Wein" in the frontend.

However, this only happens with the newly imported articles. The previously entered articles are always displayed correctly.
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