I was testing this URL
https://www.glansbeton.be/forums/vragen-over-industrievloeren/wat-is-een-dilatatievoeg

You can see that the breadcrumbs are working and the Q&A is working. Only the Objecttype for Item Reviewed is not working.

https://prnt.sc/c2G7kPHuROUs

https://search.google.com/test/rich-results/result/r%2Freview-snippet?id=6WcA1tfTurs_s_mBrFoSoA