Since the version has been updated from 0.7.0 to 0.8.0, if you have not updated, you will not be able to participate in matches.
■Additions
・Added CPU & online battles without " sushi nuki "
■Fixes
・Removed CPU battles with Sushi Detective
・Corrected some images of real sushi
・Corrected some UI
※Due to preparations for the official release version, some translations will not be completed until the next update. Thank you for your understanding!
v0.8.0 Update
Source: Steam Community (opens in a new tab)