Attribute values cannot be stored accurately by /execute store

I've tried multiple different methods, but "execute store result" is unable to read the attribute  "generic.movement_speed". Regardless of how I write the command, or where I read it from (Both item attribute modifiers and entity attribute modifiers), the result is always 0, The command's feedback is correct, it lists my current movement speed, but both storages and scoreboards are unable to read the value of my movement speed. All other attributes are fine, giving the correct value