It puts them into a queue which COps check for accuracy and act on. However, that queue is second in priority after dealing with actual customer queries.
There is almost always a huge backlog in that queue, so something getting fixed and others not is likely simply down to the fact that someone was working on the queue when your submission got reviewed and fixed and perhaps not at other times.
We’re working on ways to improve this process - to be honest it’s barely changed in 2 years and is quite a manual process. Unfortunately it’s not a high priority at the moment.