I’m not the developer but from looking at the code, the first part of your issue (the same SSID listed multiple times) is simply because the code doesn’t filter out duplicates and it picks up your 3 instances, the good news is the only thing it really gets from this is the SSID name and password so you can pick any of them (assuming the ID/pwd is the same) -it won’t hurt anything
The second part is a bit more complicated, the built in software (that OG is built on top of) method to connect to an Access point handles finding the access point with the access point you specify – so perhaps it doesn’t connect to the strongest AP with the SSID you specify – or gets confused if it detects multiples. If you go through the integrated webpage – does the connect button and text tell you it successfully connected and provide an IP?