This is caused when the Training plan within the main programme builder is replaced with the updated 'TrainingPlan / UVAC - Components Plan v2' document compared to the previous 'CommitmentStatement / UVAC-Commitment-Statement-2020-Components-Plan' document. The new v2 document contains an updated formula to calculate the planned learning hours.
FAQ: Why is a different formula for planned learning hours being used on the training plan?
Gavin Marks