Support is asking me to verify an e-fix in 2019.1 for an issue, and I had set up a simple and easy to reproduce scenario, but it's in a trailing developer sandbox, and is still on 2018.2, so I have to wait another week to verify it. They are acting like it's my fault that the developer sandbox is on an old version. I am thinking I just should not even use the trailing sandboxes in the future.