Hey all,
We've found and fixed an issue that was causing some peoples' opal counts to get reset to 0 on loading a save game.
We're hoping to push a new build with this fix live tomorrow morning.
The opal count may not be able to be restored if the save game has already been subverted.
If you want to ensure you don't lose your opal progress, keep a backup of your save until the fix comes out. To do this, make copies of the "Game 1", "Game 2" and "Game 3" files from the "<Steam install directory>\Userdata\<your Steam ID>\411970\remote" directory before you load the game. If the opal count is reset, you can then copy the save game back in (keeping in mind you'll revert any mission progress).
Sorry for the inconvenience!
Cheers
Linds