Happens in my personal project as well. As soon as I try to “REMOVE” a key (integer type) from my Map(customstruct), it crashes the second time running. Circumventing the node prevents it from crashes, but of course completely ruins the functionality of using a Map. It should be noted my Map is also using a custom structure/Structure Map with Key of Integer.
It makes no sense to me why the Remove node would be failing and crashing, since it literally is grabbing index0 from an array of the keys from the map generated using the KEYS output array from all keys present in map node.