I tried out Carbon v1.3 today, and wanted to leave some tips for others who might try running it against .craft files from v23.5. (no mods) 1. A parts list isn't included with the 1.3 download. Carbon AutoAnalyzer makes it for you. (This was a great idea, for forward-compatibility!) 2. If you run Carbon AutoAnalyzer from the main KSP folder, it will pick up some incorrect data, resulting in a "null value" JIT debug error, when you attempt to load the newly-created parts list file. 3. To work around this, run Carbon AutoAnalyzer from the Parts sub-folders. 4. Copy it first in the folder ...Kerbal Space Program\GameData\Squad\Parts, run it and open the parts.list text file. 5. Copy it second to the folder ...\Kerbal Space Program\GameData\NASAmission\Parts, run it and open the parts.list text file. 6. Copy the NASAmission parts text, to the end of the Squad parts list text file, save this, and use this combined parts.list file with the main Carbon app. Some part naming syntax may have changed in v23.5. Some parts names in the parts.list file contain "_" underscores, but when loading some .craft files, an error will appear that a part could not be found... the same part name, but containing a "." instead. Example: an entry for fuelTank_long appeared twice in the Carbon AutoAnalyzer created parts.list. Workaround: edit one instance of fuelTank_long to fuelTank.long. Also seen with ksp_r_largeBatteryPack. Suggestion for future: It would be nice if we only had to load the parts list file one time, such that it persisted across all three tab functions