Hi hectodium,

I see you are using BING as background.
Bing is outdated and is shifted from reality in many places.
It is better to use the current PDOK. .. and even better the PDOK Quick Ortho 2025 (In editor Josm) that is the easiest.

editor josm step by step
https://community.openstreetmap.org/t/editor-josm-stap-voor-stap/75047

Greetz,
eggie 