I'm facing the same problem. Installer stops with message: "one or more files failed hash verification: boot.zip"
log file content:
+00:08 (, 0) Refreshing drives
+00:08 (, 0) Found 1 drives
+00:11 (, 0) Got 0 files to download
+00:11 (, 0) Downloading "package.json"
+00:11 (, 0) Using path "/home/xxxxxxxxxxxxxxx/.local/share/Emteria/Installer/rpi3-v0.4.5/package.json"
+00:11 (, 0) Finished download of "package.json"
+00:11 (, 0) Finished DownloadWorker
+00:11 (, 0) Flashing on raw "/dev/sdc"
+00:11 (, 0) Initializing PackageWriter
+00:11 (, 0) Package base path: "/home/xxxxxxxxxxxxxxx/.local/share/Emteria/Installer/rpi3-v0.4.5"
+00:11 (, 0) Drive: "STORAGE DEVICE at /dev/sdc" with 15560867840 bytes
+00:11 (, 0) Raw at "/dev/sdc"
+00:11 (, 0) PackageWriter initialized successfully
+00:11 (, 0) Starting step 0 Reading package
+00:11 (, 0) Finished step 0 Reading package
+00:11 (, 0) Starting step 1 Verifying files
+00:11 (, 0) "boot.zip" failed MD5 verification
+00:11 (, 0) Expected "ae3b25edca25aa29133b4441cfeface9" computed "invalid path"
Please advice