Does the Heck rule apply to an amended criminal complaint?

Plaintiff argues that his amended complaint includes at least one claim that does not implicate the invalidity of his conviction and therefore does not trigger the Heck rule: a claim that his right to meaningful court access has been denied by the withholding of exculpatory evidence. In substance, however, this claim sounds under Brady v. Maryland, 373 U.S. 83, 87, 83 S.Ct. 1194, 10 L.Ed.2d 215 (1963) (Fourteenth Amendment's Due Process Clause requires prosecution to turn over exculpatory evidence), and therefore does indeed call into question the validity of his conviction. Accordingly, it is barred by Heck.