Luckperms doesn't have any event for permission changes based on the permission nodes contexts.
This means the current cache won't take into account when a multiplier is added/removed based on contexts.
For example, if you use ExtraContexts, or any other built-in LP contexts the cache probably wouldn't work.
I didn't want to remove the entire feature, since it is probably useful for many large servers. Most people only use the server context which doesn't change on the same server. Instead, I made a config option to disable the feature if necessary.