Load .json error from interrupted connection

[dore0062]

Describe the bug
While using a program such as atom, sometimes quitting and interrupting the connection early can put the game in a semi-permanent broken state regardless of any restarting or cache verification. If you load a save, then load another (or wait for onSave to save twice,) you will be unable to access any saves. This includes rewinding or trying to load any save. The error"Load .json error: Object reference not set to instance of an object displays on loading attempts. Restarting the game is the only way to get back into saves, where you are again presented with only one reload.

To Reproduce
Steps to reproduce the behavior:

1. Use atom or other program that uses the tts external socket
2. Interrupt the connection early during a transfer via crash or forcibly closing
3. Reload game

Tabletop Simulator Info (please complete the following information):

• OS: Windows 10.0.18362 Build 18362
• Processor: AMD Ryzen 5 2600 Six-Core Processor, 3400 Mhz, 6 Core(s), 12 Logical Processor(s)
• Total Physical Memory 16.0 GB
• Version: v12.1.6

Known workarounds
Reinstalling the game fixes the issue