It is still the case that the LocalStorage component will return the string “null” as the value if there is no value associated with a key or if, for some reason, the non-string null value is stored at a key. If this doesn’t appear to be the case for you, please create a very simple project which shows the buggy behavior and share it.
Note that we will at some point probably start returning the null value rather than the “null” string from the LocalStorage component in order to be compatible with the way that variables get stored and retrieved but we haven’t done that yet. If you want to “future-proof” your blocks you might want to check for both: