Uncaught exception when attempting coop mission replay

[SecondCobra]

When trying to run a replay from the Coop Missions, I get an uncaught exception, text below.
This is all replays in coop and happens every time, but does not occur for Vault replays - they work fine.


Traceback (most recent call last):
File "src\coop\_coopwidget.py", line 91, in finishRequest
File "src\fa\replay.py", line 34, in replay
File "C:\Python36\lib\json\__init__.py", line 354, in loads
File "C:\Python36\lib\json\decoder.py", line 339, in decode
File "C:\Python36\lib\json\decoder.py", line 357, in raw_decode
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Runtime info:

FAF Username: titan-aussie
FAF Version: 0.18.1+3081
FAF Environment: production
FAF Directory: C:\ProgramData\FAForever
FA Path: : C:/Program Files (x86)/Steam/steamapps/common/Supreme Commander Forged Alliance
Home Directory: C:/Users/MyName/Documents
Platform: Windows-10-10.0.17134
Uname: uname_result(system='Windows', node='PCName', release='10', version='10.0.17134', machine='AMD64', processor='Intel64 Family 6 Model 94 Stepping 3, GenuineIntel')