SwiftKey iOS

I keep getting that issue where the keyboard switches back to the default Apple keyboard, and sorta "jumps" while it does it—the fix is to delete and redownload the app, but my custom keyboards don't save when I do that, and it's such a hassle having to remake them just because the keyboard itself started to glitch. Please either add an option for the custom keyboards to save to the account, or figure out what's causing the glitch and squash that bug once and for all. Also, it won't let me sign in to any of my accounts. I get an error message. SwiftKey, it's been over a year, please don't forget about your iOS users