Hi @Jannik Wiedenhaupt, there might be many reasons why that might happen -
1. If the pipeline dropdown has a pipeline that contains 1 node
2. The filters on the filter panel might have a selection
3. The node you are seeing might be a modular pipeline node and all other nodes might be wrapped in.
It would be hard to tell unless we know the pipeline structure. You could try Reset the filter panel, expand all modular pipelines
Thank you