diff --git a/.buildkite/hooks/pre-command b/.buildkite/hooks/pre-command
index f7151acc35..3e0491d64f 100644
--- a/.buildkite/hooks/pre-command
+++ b/.buildkite/hooks/pre-command
@@ -31,4 +31,9 @@ export CARGO_TARGET_CACHE=$HOME/cargo-target-cache/"$CHANNEL"-"$BUILDKITE_LABEL"
 
   mkdir -p "$CARGO_TARGET_CACHE"/target
   rsync -a --delete --link-dest="$CARGO_TARGET_CACHE" "$CARGO_TARGET_CACHE"/target .
+
+  # Don't reuse BPF target build artifacts due to incremental build issues with
+  # `std:
+  #    "found possibly newer version of crate `std` which `xyz` depends on
+  rm -rf target/bpfel-unknown-unknown
 )
diff --git a/storage-bigtable/src/convert.rs b/storage-bigtable/src/convert.rs
index 542a5cbf68..e41e28805e 100644
--- a/storage-bigtable/src/convert.rs
+++ b/storage-bigtable/src/convert.rs
@@ -46,8 +46,8 @@ impl From<generated::Reward> for Reward {
                 0 => None,
                 1 => Some(RewardType::Fee),
                 2 => Some(RewardType::Rent),
-                3 => Some(RewardType::Voting),
-                4 => Some(RewardType::Staking),
+                3 => Some(RewardType::Staking),
+                4 => Some(RewardType::Voting),
                 _ => None,
             },
         }
@@ -313,3 +313,36 @@ impl From<generated::CompiledInstruction> for CompiledInstruction {
         }
     }
 }
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_reward_type_encode() {
+        let mut reward = Reward {
+            pubkey: "invalid".to_string(),
+            lamports: 123,
+            post_balance: 321,
+            reward_type: None,
+        };
+        let gen_reward: generated::Reward = reward.clone().into();
+        assert_eq!(reward, gen_reward.into());
+
+        reward.reward_type = Some(RewardType::Fee);
+        let gen_reward: generated::Reward = reward.clone().into();
+        assert_eq!(reward, gen_reward.into());
+
+        reward.reward_type = Some(RewardType::Rent);
+        let gen_reward: generated::Reward = reward.clone().into();
+        assert_eq!(reward, gen_reward.into());
+
+        reward.reward_type = Some(RewardType::Voting);
+        let gen_reward: generated::Reward = reward.clone().into();
+        assert_eq!(reward, gen_reward.into());
+
+        reward.reward_type = Some(RewardType::Staking);
+        let gen_reward: generated::Reward = reward.clone().into();
+        assert_eq!(reward, gen_reward.into());
+    }
+}