Are you favoring steam over GOG? The 1.0.53 patch isn't on GOG nor is the editor....
I had really hoped that Larian had learned after the update issues with the GOG version of Dragon Commander. But again, GOG lags behind and may skip updates left and right.
Larian, please consider an automatic, in game updater for GOG and Larian Vault editions.
GOG just does not care about timely updates!