During Multi Blindfolded a competitor submitted his puzzles to be scrambled, without writing down a declared number of cubes. The scramblers scrambled all the puzzles and wrote down it on the scorecard. When the competitor came to solve, he had said that he wanted to attempt for a number of puzzles (lower than what he submitted). The judge miscounted them and prepare all the puzzles for the attempt.
The WCA Delegate allowed not solving all the puzzles but only the number he said. Due to the staff failure at counting the puzzles, the WCA Delegate decided to grant a provisional extra attempt.
Although the competitor said a different number later, he initially submitted all the puzzles and didn't mark anything on the scoresheet. This violates Regulation H1a):
H1a) Before an attempt, the competitor must submit to the organization team the number of puzzles (at least 2) they wish to attempt.
In addition, Regulation H1a1) explicitly clarifies that changing the number of puzzles is not allowed:
H1a1) A competitor is not permitted to change the number of puzzles after submitting their number to the organization team.
Therefore the WRC decision if to consider that the competitor submitted all the puzzles that originally submitted.