What happens to a lift if a lifter fails to submit a change in their attempt card timely after a successful lift?

When a lifter fails to submit a change in their attempt card in a timely manner after a successful lift, the correct consequence is an automatic increase of 2.5 kg in the attempted weight for their next lift. This rule is in place to maintain the flow and organization of the competition, allowing other lifters to prepare for their turns.

The lifter's intent to change their attempt should be communicated before the designated time frame elapses, which ensures that all lifters adhere to the same standards and that the competition runs smoothly. Therefore, if such a change is not made on time, the lifter is escalated to the next weight increment without needing to formally resubmit. This automatic adjustment reflects the competitive nature of powerlifting, where lifters often aim to push their limits incrementally.

In this context, each of the other options presents outcomes that do not align with the established rules governing competition conduct and attempt management. Invalidating a successful lift or requiring a retake would undermine the fairness and structure of competitive lifting, while waiting until the next round does not provide a viable pathway for progression during the current competition.