when Terastallizing on any pokemon with any tera type, the terastallized turns completely invisible, only way to fix this issue i have found has been to enable legacy Tera effects on both server and client config files, as if it's in server only the pokemon will still become invisible but have an outline instead of being fully invisible
Attached an image of the pokemon terastallized into flying type with the legacy effects on server and modern ones on client
Other shaders don't seem to have a similar issue but all settings for this one seems to, I am using version 9.5c of the shaders and version
1.9.3+1.7.3+1.21.1 of mega showdown

when Terastallizing on any pokemon with any tera type, the terastallized turns completely invisible, only way to fix this issue i have found has been to enable legacy Tera effects on both server and client config files, as if it's in server only the pokemon will still become invisible but have an outline instead of being fully invisible
Attached an image of the pokemon terastallized into flying type with the legacy effects on server and modern ones on client
Other shaders don't seem to have a similar issue but all settings for this one seems to, I am using version 9.5c of the shaders and version
1.9.3+1.7.3+1.21.1 of mega showdown