TypeError: Cannot read property 'isCustom' of null
If the issue persists please report this error to firstname.lastname@example.org
No mods activated.Game Version: 1.5.28
I have the same error, you got to fix it?
That error usually indicates that your current save file has become corrupt. This can happen if you install or uninstall mods in the middle of a playthrough. Try hitting the ‘ESC’ key to navigate back to the main menu and from there you can load an earlier auto save or start a new game.
Please let me know if you need additional help with this problem.