A minor but puzzling observation that if the legal entity name is lower case (operator error) the resulting bug states the issue (all good) but then complains `Try$Failure cannot be cast to Try$Succes` ... this just seemed odd and worth an investigation.
[ERROR] 08:19:22+0000 [main] internal.NodeStartupLogging. - Issue with Node registration: Response Code 500: Validation failed for C=GB,L=London,O=partya-5acdcc
c0-7c8f-4bb9-a7ce-5aa3cb20cb6d. Name validation failed: Legal name should be capitalized. i.e. 'Partya-5acdccc0-7c8f-4bb9-a7ce-5aa3cb20cb6d'.
[ERROR] 08:19:22+0000 [main] internal.NodeStartupLogging. - Exception during node startup: net.corda.core.utilities.Try$Failure cannot be cast to net.corda.core
.utilities.Try$Success [errorCode=rmnkpl, moreInformationAt=https://errors.corda.net/OS/4.3/rmnkpl]
There is then nothing useful under the error link (screenshot attached). This is OS 4.3.