Regarding the error message. We've quite a complex and probably unique system regarding localization. The whole game code (
Github repo is compiled right on the client-side and the localized strings are simply injected in place of the original text. So technically the code doesn't work with any localization management, everything is already localized to the user's language on the compilation stage. It both saves performance and makes programming a bit easier (localization is always a pain).
Unfortunately, this approach doesn't allow us to have anything else besides a single language (of course, English) on the server's side.
Reworking everything to assign IDs manually would be Sisyphean labor as we have hundreds of string entries that can be passed as errors. We have some ideas how we can rework this and both have proper server-side logging and client-side localization of incoming errors but so far it's unlikely that we will have time to work on this fairly rare corner case. And as this issue is usually related to the construction tasks only when you place something in batches (like wall blueprints and floor) we will probably just find a simple workaround only for this case. We've already done this in some cases by reworking remote methods to provide an enum value instead of the raw string in the result.
Regards!