The recent Invasion deployment had a bug in portion size for exotic plasma charges. These are type IDs 47924,47928,47932,47885,47886,47887,47925,47929, and 47933. The bug made the portion size such that it was very lucrative to buy exotic plasma ammo, reprocess and sell the output (too much reprocessing output was provided for the given portion size). CCP disabled reprocessing for these types while they worked on the issue.
CCP fixed this bug as of downtime on 2019-06-03 changing the portion size from 1000 to 5000 for these types. Reprocessing is thus now possible for these types. I have manually fixed these portions in the 2019-05-29 SDE provided by EveKit.