I am using Needle 3.52 without any issues. But when I update to 4.x I receive the following error in Unity:
Can’t reach local Needle License Server on port 8424
I have observed this issue already since several days and from different networks. When I change back to 3.x everything works well again. Also tried different Unity versions (2022.3 & 6000)
could you try updating to the latest beta (4.1.0-beta.5) if you haven’t already? And then send a bugreport via the menu item at Needle Engine/Report a bug?
After that try going to the ProjectSettings/Needle and at the bottom at Troubleshooting try clicking “Delete npm cache”. Let me know if that helps.