I just had 22 upvotes "corrected" by "the system" for which is linked help says (emphasis mine):
When a single user continually votes (up or down) on many of your posts within a short period of time, the system considers these votes to be invalid and removes them.
Looking back over my reputation history, there is no burst of any upvotes "within a short period of time".
Is this category of correction sometimes used as a general category for special voting adjustments?
¯\_(ツ)_/¯