diff --git a/library/composables/useMapInstance.js b/library/composables/useMapInstance.js
index de637e368..850aeca12 100644
--- a/library/composables/useMapInstance.js
+++ b/library/composables/useMapInstance.js
@@ -798,7 +798,11 @@ export function useMapInstance({
         const w = typeof window !== 'undefined' ? window : null
         if (w && w.__doxaLogoOwner === map.value) w.__doxaLogoOwner = null
       } catch (_) { /* a locked-down window is not a reason to skip the teardown below */ }
+      const dead = map.value
       map.value.remove()
+      // The container kept __doxaMap after teardown, holding the whole dead map (GL context, sources,
+      // tiles) reachable from the DOM. Clear it only if it is still this instance's.
+      try { if (containerRef && containerRef.value && containerRef.value.__doxaMap === dead) containerRef.value.__doxaMap = null } catch (_) {}
       map.value = null
       isMapReady.value = false
     }