Along with the recent patch notes posted a couple days ago was information about a bug involving schematics learned through reverse engineering. In the beginning, BioWare was just investigating the occurrence of it but now, it appears to be a bigger issue than originally thought.
Quote from BioWare
Just wanted to let you know that we're still heavily investigating this issue and your reports have helped. If you are currently experiencing this issue, please refrain from reverse engineering items until we provide a solution to this. This issue only occurs when learning schematics from reverse engineering. You can still learn schematics from trainers and items without any problems.
We apologize for the inconvenience.
Hopefully, the bug will be fixed soon.