Yeah so this actually has little to do with the game itself, but is instead a bug with renpy. Luckily, I have a fix for it.
https://mega.nz/file/78VnmC6D#Qbc-_toT-YCXM1AV3hXpGBsiap4CdlCkluWYIsnJlVc
Download this and drop the included renpy folder over your existing one in the stormside folder. It should replace 2 files. This will patch the version of Renpy that the game runs on to be a slightly custom version, and should fix this issue. This fix will be included in the next update, but for now, here's a patch.