[2021] Possible bug found in solo training grounds

I've been trying to play training grounds in solo over the past few days, and within 2 minutes to 1 hour the game completely freezes and then decided to crash.

In my logs there is this error;
[ 3196] 2020-11-01 10:59:39   [18936]   ERROR   UplayInstallerImpl.cpp (241)           Chunk id 2 doesn't exists in cache

this line starts at chunk id 2 and repeats up to 50, I have two PC's that both get the same error, one of which I done a clean install of windows and it still happens.

I've also reported this bug on r6fix (which i doubt will do anything)

I was just curious if this was a known issue with a possible fix?

Kind regards.