I've been messing up with multiple computer monitors and it appears that the sprite animation window has been lost. I'm pretty sure it is beyond my monitor resolution and I can't find a way to bring it back.
I still have my image Points and Animation frames windows, but not the animations list window.
Any idea ? :/
edit : nevermind, there was an option in the preferences to do that
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Have you tried 'Preferences/Reset dialogs' ?
Found it at the same time, thanks.