diff --git a/engine/packages/pegboard/src/ops/runner_config/delete.rs b/engine/packages/pegboard/src/ops/runner_config/delete.rs
index 7c19fc0ca4..b3d3c96b64 100644
--- a/engine/packages/pegboard/src/ops/runner_config/delete.rs
+++ b/engine/packages/pegboard/src/ops/runner_config/delete.rs
@@ -44,12 +44,18 @@ pub async fn pegboard_runner_config_delete(ctx: &OperationCtx, input: &Input) ->
 
 	// Bump pool when a serverless config is modified
 	if delete_pool {
-		ctx.signal(crate::workflows::runner_pool::Bump {})
+		let res = ctx
+			.signal(crate::workflows::runner_pool::Bump {})
 			.to_workflow::<crate::workflows::runner_pool::Workflow>()
 			.tag("namespace_id", input.namespace_id)
 			.tag("runner_name", input.name.clone())
+			.graceful_not_found()
 			.send()
 			.await?;
+
+		if res.is_none() {
+			tracing::debug!(namespace_id=?input.namespace_id, name=%input.name, "no runner pool workflow to bump");
+		}
 	}
 
 	Ok(())
diff --git a/engine/packages/pegboard/src/ops/runner_config/upsert.rs b/engine/packages/pegboard/src/ops/runner_config/upsert.rs
index 9c4f00ad72..09da081335 100644
--- a/engine/packages/pegboard/src/ops/runner_config/upsert.rs
+++ b/engine/packages/pegboard/src/ops/runner_config/upsert.rs
@@ -169,12 +169,27 @@ pub async fn pegboard_runner_config_upsert(ctx: &OperationCtx, input: &Input) ->
 		.dispatch()
 		.await?;
 	} else if input.config.affects_pool() {
-		ctx.signal(crate::workflows::runner_pool::Bump {})
+		let res = ctx
+			.signal(crate::workflows::runner_pool::Bump {})
 			.to_workflow::<crate::workflows::runner_pool::Workflow>()
 			.tag("namespace_id", input.namespace_id)
 			.tag("runner_name", input.name.clone())
+			.graceful_not_found()
 			.send()
 			.await?;
+
+		// Backfill
+		if res.is_none() {
+			ctx.workflow(crate::workflows::runner_pool::Input {
+				namespace_id: input.namespace_id,
+				runner_name: input.name.clone(),
+			})
+			.tag("namespace_id", input.namespace_id)
+			.tag("runner_name", input.name.clone())
+			.unique()
+			.dispatch()
+			.await?;
+		}
 	}
 
 	Ok(res.endpoint_config_changed)
diff --git a/engine/packages/universalpubsub/src/chunking.rs b/engine/packages/universalpubsub/src/chunking.rs
index 2d276233fc..03be93cf0b 100644
--- a/engine/packages/universalpubsub/src/chunking.rs
+++ b/engine/packages/universalpubsub/src/chunking.rs
@@ -103,7 +103,7 @@ impl ChunkTracker {
 			.retain(|_, buffer| now.duration_since(buffer.last_chunk_ts) < CHUNK_BUFFER_MAX_AGE);
 		let size_after = self.chunks_in_process.len();
 
-		tracing::debug!(
+		tracing::trace!(
 			?size_before,
 			?size_after,
 			"performed chunk buffer garbage collection"