Add support for local cryptex disk images by pennig · Pull Request #423 · XcodesOrg/xcodes
Looks like it's still happening:
% xcodes version
1.6.1
% xcodes runtimes
Error: dataCorrupted(Swift.DecodingError.Context(codingPath: [_CodingKey(stringValue: "xxxxxxx", intValue: nil), CodingKeys(stringValue: "kind", intValue: nil)], debugDescription: "Cannot initialize Kind from invalid String value Patchable Cryptex Disk Image", underlyingError: nil))