I took another look at this and am fairly confident 1.4.1 fixed the issue. Therefore, I think the previous version (1.4.0) had already messed up the colon in the IP field and you noticed after opening 1.4.1.
Does this seem plausible? Can you recreate the issue now?
If it can be re-created I will take another look and see what could possibly be causing the issue otherwise it should be fixed and working at this point.
Update: Regarding the weather diagnostics not working, do you get any specific error message? I don’t have an Amazon device to test.