The "Apply Previous" command in the "Predictive Coding" panel does not work.
This is expected. The "IsCarryable" coding panel attribute is "false" for all fields on the "Predictive Coding" panel, and thus, no values can be carried over to the next record by "Apply Previous".
The "IsCarryable" attribute defines whether a field value can carry over from a previously-coded record to the next record. By-design, the "Predictive Coding" panel has no fields that are "carryable".
Please see the help article below for more detail about predictive coding.