From 8637c46ba1c1b8402e067a0bf23b3bb43884fcaf Mon Sep 17 00:00:00 2001
From: Elena Torro <elenatorro@gmail.com>
Date: Thu, 22 Jan 2026 08:52:26 +0100
Subject: [PATCH] :bug: Fix empty pool state

---
 render-wasm/src/state/shapes_pool.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/render-wasm/src/state/shapes_pool.rs b/render-wasm/src/state/shapes_pool.rs
index 4edb41069e..6587a23de2 100644
--- a/render-wasm/src/state/shapes_pool.rs
+++ b/render-wasm/src/state/shapes_pool.rs
@@ -98,7 +98,9 @@ impl ShapesPoolImpl {
         if self.counter >= self.shapes.len() {
             // We need more space
             let current_capacity = self.shapes.capacity();
-            let additional = (self.shapes.len() as f32 * SHAPES_POOL_ALLOC_MULTIPLIER) as usize;
+            // Ensure we add at least 1 shape when the pool is empty
+            let additional =
+                ((self.shapes.len() as f32 * SHAPES_POOL_ALLOC_MULTIPLIER) as usize).max(1);
             let needed_capacity = self.shapes.len() + additional;
 
             if needed_capacity > current_capacity {