I submitted a second LOE with my Schedule A form (IMM5669) because I had to make some corrections with regards to my EE profile after AOR as I had already submitted an LOE with my profile. Is this fine?
Ok, there's no limit to how many LOEs you submit. If you submit something new and believe you need to explain something, there's no harm in that, on the contrary, you're making it easier for the VO.