From c6a58b15ddd36dc3d5d55bf61829f514b11f4750 Mon Sep 17 00:00:00 2001
From: Dominik Roth <dominik.roth.dev@gmail.com>
Date: Mon, 22 Aug 2022 14:19:40 +0200
Subject: [PATCH] Fixing SDE bug

---
 metastable_baselines/distributions/distributions.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/metastable_baselines/distributions/distributions.py b/metastable_baselines/distributions/distributions.py
index db3d2a1..22831d4 100644
--- a/metastable_baselines/distributions/distributions.py
+++ b/metastable_baselines/distributions/distributions.py
@@ -367,7 +367,7 @@ class UniversalGaussianDistribution(SB3_Distribution):
             return (th.mm(latent_sde, self.exploration_mat) @ chol)[0]
         p = self.distribution
         if isinstance(p, th.distributions.Normal) or isinstance(p, th.distributions.Independent):
-            chol = p.stddev
+            chol = th.diag_embed(self.distribution.stddev)
         elif isinstance(p, th.distributions.MultivariateNormal):
             chol = p.scale_tril