The “Player” object has a Capsule Collider. The map also has a Collider but is made of many Box Colliders. However, if I touch, as a player, an object that has a collision (and is standing against a wall), I can pass through the wall as if there was no collision at all.
Most likely you checked “Is Trigger” on one of the colliders. Make sure they’re not trigger colliders.
Otherwise, did you change the Layer assigned to one or both of the colliders? Are those layers configured to support collision?
Otherwise, did one of the colliders get disabled?
If not, show a screenshot of what you’re seeing, and ideally a screenshot of the Inspector for both colliders.
Thread closed, one collider was disabled…