I have some custom block types that display in a region in my site. I have noticed that when changing the contents of these blocks, like an image, text, or title, that when you save and visit the page, the block data is cached and doesn't show the new changes. This is problematic because the client keeps reporting this as a bug, but I can't see where or why it won't update.
Is there a way to have it invalidate when saving a block so that a cache clear isn't necessary? I figured this would be normal behavior, but I have to clear it (while logged in as UID 1 even), and I don't think I am doing anything weird or have a contrib module installed that would interfere with this.
Edit: I am not using Panels or anything - this is core block.