🐛 Fix loading blueprints with variants crashing

Author: SnaveSutit

src/formats/blueprint/codec.ts

@@ -156,18 +156,22 @@ export const BLUEPRINT_CODEC = registerCodec(
 				}
 			}
 
-			if (model.variants?.default) {
-				Variant.fromJSON(model.variants?.default, true)
-			} else {
-				console.warn('No default Variant found, creating one named "Default"')
-				new Variant('Default', true)
-			}
+			if (model.variants) {
+				Variant.all = []
+
+				if (model.variants.default) {
+					Variant.fromJSON(model.variants?.default, true)
+				} else {
+					console.warn('No default Variant found, creating one named "Default"')
+					new Variant('Default', true)
+				}
 
-			if (model.variants?.list) {
-				for (const variantJSON of model.variants.list) {
-					Variant.fromJSON(variantJSON)
+				if (Array.isArray(model.variants.list)) {
+					for (const variantJSON of model.variants.list) {
+						Variant.fromJSON(variantJSON)
+					}
+					Project.variants = Variant.all
 				}
-				Project.variants = Variant.all
 			}
 
 			if (model.animations) {