Fix corrupted font resource loading in older documents

node-graph/graph-craft/src/application_io/resource/opfs.rs

@@ -153,6 +153,9 @@ async fn drain_queue(inner: Arc<Mutex<Inner>>) {
 			Mutation::Write { hash, bytes } => {
 				if let Err(error) = write_file(&directory, &hash, &bytes).await {
 					log::error!("OPFS write for {hash} failed: {error:?}");
+
+					// Nothing reached disk, so leaving the hash listed would claim a file that later sessions cannot read
+					inner.lock().unwrap().on_disk.remove(&hash);
 				}
 			}
 			Mutation::Delete { hash } => {

node-graph/nodes/gstd/src/platform_application_io.rs

@@ -258,12 +258,18 @@ pub fn editor_api(_: impl Ctx, #[scope("editor-api")] editor_api: Arc<PlatformEd
 pub fn resource(_: impl Ctx, hash: ResourceHash, #[scope(editor_api::IDENTIFIER)] editor_api: Arc<PlatformEditorApi>) -> SourceFuture<GPoll<Resource>> {
 	let application_io = editor_api.application_io.clone();
 	Box::pin(async move {
+		// A missing resource degrades to an empty placeholder rather than failing the graph, so a document
+		// whose stored bytes went missing (evicted browser storage, or an interrupted write) still opens
 		let Some(application_io) = application_io else {
-			return GPoll::error("ApplicationIo not available");
+			log::error!("Resource {hash} is unavailable because the platform's application IO is missing");
+			return GPoll::Final(Resource::empty());
 		};
 		match application_io.load_resource(hash).await {
 			Some(resource) => GPoll::Final(resource),
-			None => GPoll::error("resource not found"),
+			None => {
+				log::error!("Resource {hash} was not found in storage");
+				GPoll::Final(Resource::empty())
+			}
 		}
 	})
 }