The app adds every exercise you click (even if by accident) to the Recent list and NEVER removes them, even literally years later - which clearly isn't "recent". There is no way to manually remove them either.
This should be an easy modification to the current code; even if it removed lifts after 90 days it would clean up the errors.
The purpose of having a Recent list is to make the user interface easier by allowing a quicker edit of a lift/exercise w/o having to scroll through 100's of options. But without the ability to ever remove something from the list, it becomes longer and longer itself, defeating the purpose.