==> Making package: proton-ge-custom-stable-bin 5.9_GE_3_ST-3 (Do 09 Jul 2020 21:43:07 CEST)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Found proton-ge-custom-stable-5.9-GE-3-ST.tar.gz
  -> Found supplementary.tar.zst
==> Validating source files with md5sums...
    proton-ge-custom-stable-5.9-GE-3-ST.tar.gz ... FAILED
    supplementary.tar.zst ... Passed
==> ERROR: One or more files did not pass the validity check!
Failed to build proton-ge-custom-stable-bin