When adding custom banners with animation (.webm) in Track Editor, complied shadows will flicker like crazy around these banners on a "Very High" shader setting, anything lower do not produce such glitch (High i.e.)
https://i.imgur.com/XBFcIhP.jpg
https://i.imgur.com/b0O18ct.jpg
these flashes flicker almost every other frame
https://i.imgur.com/XBFcIhP.jpg
https://i.imgur.com/b0O18ct.jpg
these flashes flicker almost every other frame