I’m having the same problem, som buttons showing up with capitalized text (like COMMON.SEARCH etc.) , the usual fixes did not help. My setup is a rpi3 with 2 network interfaces, wlan0 (though which I connect to it) and eth0 which is on a different subnet and connects to my NAS. Now it looks like the web ui is trying to fetch some elements form the ip address belonging to the eth0 interface which is not accessible from wifi. I’m guessing something just takes the first ip address it finds without checking if it makes sense. Browser debug window shows this error message:
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://192.168.10.100/socket.io/?EIO=3&transport=polling&t=NA3oxbF. (Reason: CORS request did not succeed).
192.168.10.100 is the address of the ethernet interface on the other net. Is there a way to specify which interface is to be used for web ui operations?