The Legend of Heroes: Zero No Kiseki Kai has been updated today on PC. You can find out the complete patch notes for this update from here.
This is for the Traditional Chinese and Korean version of the game which doesn’t have an English version released yet, although it is coming at a later stage. You can get the details on the new patch below, or take a look at the Steam forums.
The Legend of Heroes: Zero no Kiseki Kai Update Patch Notes December 30
The issue that game operation on full screen became unstable when refresh rate over 60Hz has been fixed. It has been confirmed that this was not solved on some PC configuration, so we are currently investigating this issue.
If the same issue continuously occurs even after the update, please play the game with window mode.
There is the issue that in-game movie cannot be played when VP9 Codec is not installed. Please install VP9 Codec to resolve this issue.
https://www.microsoft.com/en-us/p/vp9-video-extensions/9n4d0msmp0pt?activetab=pivot:overviewtab
We apologize for any inconvenience.