I noticed this in v2.0.5325.0. It may already be fixed in a later version.
When creating a Patch, the maximum length for TargetImage and UpgradeImage Id fields is 13 characters, however candle and light give no warning or errors. This causes msimsp.exe to fail with generic error:
INFO: Phase V: Entering Generate MSP.
INFO: Generating Patch Metadata.
ERROR: Internal PatchWiz Error occurred.
ERROR: The Last Error Received is: 1627
ERROR: The Last Error Received is: 1: 2213 2:
Logged In: YES
user_id=991639
Originator: NO
Reasonable issue but we're not likely to another release of WiX v2 for it. Moving this to WiX v3.
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