In some rare cases, the game's default setting of running in fullscreen mode can cause graphical issues. Running the game in windowed mode can alleviate this. To do so, add the following to your Launch Options:

/FullScreen=false /NoBorder=true /X=1920 /Y=1080

You may replace X and Y with your native or preferred resolution.

To set Launch Options, right-click on Pyre in your Steam game library, select Properties, then click on "Set Launch Options..."