My phone's memory keeps filling up. I have determined that all pictures, screenshots, videos, etc. have been moved to SD Cards. The cache isn't causing it. What are your thoughts as to what may be causing this?

It could be a few different things. One possibility is that apps you have downloaded are using up a lot of storage. It's also possible that your phone is running low on RAM, which can cause memory to become full. Additionally, there may be hidden files on your phone or other files that are taking up space. If you aren't sure what is causing the issue, I would suggest checking with your phone's manufacturer for advice or looking up tips online for how to free up space on your phone.