diff --git a/Telegram/SourceFiles/ui/effects/thanos_effect_renderer.cpp b/Telegram/SourceFiles/ui/effects/thanos_effect_renderer.cpp
index 9ccf02a9a3..a8bd257dd7 100644
--- a/Telegram/SourceFiles/ui/effects/thanos_effect_renderer.cpp
+++ b/Telegram/SourceFiles/ui/effects/thanos_effect_renderer.cpp
@@ -285,6 +285,7 @@ void ThanosEffectRenderer::render(
 		return;
 	}
 	if (!_initialized || !rhi->isFeatureSupported(QRhi::Compute)) {
+		_pendingItems.clear();
 		return;
 	}
 	_rhi = rhi;