diff --git a/keyserver/src/fetchers/thread-permission-fetchers.js b/keyserver/src/fetchers/thread-permission-fetchers.js
--- a/keyserver/src/fetchers/thread-permission-fetchers.js
+++ b/keyserver/src/fetchers/thread-permission-fetchers.js
@@ -162,6 +162,7 @@
       threadInfos[threadID],
       viewer.id,
       userInfos,
+      false,
     );
     if (blockedThread) {
       threadIDsWithDisabledPermissions.add(threadID);
diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -176,6 +176,7 @@
         threadInfo,
         loggedInUserInfo.id,
         userInfos,
+        true,
       );
 
       const permissions = threadFrozen
@@ -864,7 +865,7 @@
   viewerID: ?string,
   userInfos: UserInfos,
 ): ThreadCurrentUserInfo {
-  if (!threadFrozenDueToBlock(threadInfo, viewerID, userInfos)) {
+  if (!threadFrozenDueToBlock(threadInfo, viewerID, userInfos, false)) {
     return threadInfo.currentUser;
   }
   return {
@@ -880,10 +881,11 @@
   viewerID: ?string,
   userInfos: UserInfos,
   checkOnlyViewerBlock: boolean,
+  skipMemberAdminRoleCheck: boolean,
 ): boolean {
   if (
     threadOrParentThreadIsGroupChat(threadInfo) ||
-    threadOrParentThreadHasAdminRole(threadInfo)
+    (!skipMemberAdminRoleCheck && threadOrParentThreadHasAdminRole(threadInfo))
   ) {
     return false;
   }
@@ -911,8 +913,15 @@
   threadInfo: LegacyRawThreadInfo | RawThreadInfo | ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
+  skipMemberAdminRoleCheck: boolean,
 ): boolean {
-  return threadIsWithBlockedUserOnly(threadInfo, viewerID, userInfos, false);
+  return threadIsWithBlockedUserOnly(
+    threadInfo,
+    viewerID,
+    userInfos,
+    false,
+    skipMemberAdminRoleCheck,
+  );
 }
 
 function threadFrozenDueToViewerBlock(
@@ -921,7 +930,13 @@
   viewerID: ?string,
   userInfos: UserInfos,
 ): boolean {
-  return threadIsWithBlockedUserOnly(threadInfo, viewerID, userInfos, true);
+  return threadIsWithBlockedUserOnly(
+    threadInfo,
+    viewerID,
+    userInfos,
+    true,
+    false,
+  );
 }
 
 const threadTypeDescriptions: { [ThreadType]: string } = {