Agency regulation holding a minimal period of unemployment when transferring between jobs is sufficient to constitute a break in employment for purposes of qualifying for protections of judicial review is a reasonable one, and as it's specific, it's not subject to the anti-parroting canon.
When an agency does not inform an employee of the loss of appeal rights from a transfer, those appeal rights can't later be grated by the Board when they are outside of the statutory jurisdiction of the Board.
No Due Process rights, as the boundaries of the right are coterminous with the boundaries of the statute.
http://www.cafc.uscourts.gov/sites/default/files/opinions-orders/17-1535.Opinion.6-7-2018.1.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.