diff --git a/build.gradle b/build.gradle
index b840d4f51..4bdce3d75 100644
--- a/build.gradle
+++ b/build.gradle
@@ -524,16 +524,15 @@ List<Provider<RegularFile>> plugins = [
 task "${baseName}#mixedClusterTask"(type: StandaloneRestIntegTestTask) {
     dependsOn "${baseName}#oldVersionClusterTask0"
     useCluster testClusters."${baseName}0"
-    // Only do mixed cluster tasks on same major version
-    if (bwc_major_version != opensearch_major_version) {
-      ignoreFailures = true
-    } else {
-      doFirst {
+    doFirst {
+      if (bwc_major_version == opensearch_major_version) {
         testClusters."${baseName}0".upgradeNodeAndPluginToNextVersion(plugins)
+      } else {
+        testClusters."${baseName}0".upgradeAllNodesAndPluginsToNextVersion(plugins)
       }
-      filter {
-        includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
-      }
+    }
+    filter {
+      includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
     }
     systemProperty 'tests.rest.bwcsuite', 'mixed_cluster'
     systemProperty 'tests.rest.bwcsuite_round', 'first'
@@ -548,16 +547,13 @@ task "${baseName}#mixedClusterTask"(type: StandaloneRestIntegTestTask) {
 task "${baseName}#twoThirdsUpgradedClusterTask"(type: StandaloneRestIntegTestTask) {
     dependsOn "${baseName}#mixedClusterTask"
     useCluster testClusters."${baseName}0"
-    // Only do mixed cluster tasks on same major version
-    if (bwc_major_version != opensearch_major_version) {
-      ignoreFailures = true
-    } else {
-      doFirst {
+    doFirst {
+      if (bwc_major_version == opensearch_major_version) {
         testClusters."${baseName}0".upgradeNodeAndPluginToNextVersion(plugins)
       }
-      filter {
-        includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
-      }
+    }
+    filter {
+      includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
     }
     systemProperty 'tests.rest.bwcsuite', 'mixed_cluster'
     systemProperty 'tests.rest.bwcsuite_round', 'second'
@@ -572,16 +568,13 @@ task "${baseName}#twoThirdsUpgradedClusterTask"(type: StandaloneRestIntegTestTas
 task "${baseName}#rollingUpgradeClusterTask"(type: StandaloneRestIntegTestTask) {
     dependsOn "${baseName}#twoThirdsUpgradedClusterTask"
     useCluster testClusters."${baseName}0"
-    // Only do mixed cluster tasks on same major version
-    if (bwc_major_version != opensearch_major_version) {
-      ignoreFailures = true
-    } else {
-      doFirst {
+    doFirst {
+      if (bwc_major_version == opensearch_major_version) {
         testClusters."${baseName}0".upgradeNodeAndPluginToNextVersion(plugins)
       }
-      filter {
-        includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
-      }
+    }
+    filter {
+      includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
     }
     mustRunAfter "${baseName}#mixedClusterTask"
     systemProperty 'tests.rest.bwcsuite', 'mixed_cluster'