Request profile fetches on main thread.

SignalServiceKit/src/Messages/OWSMessageManager.m

@@ -1483,7 +1483,9 @@ NS_ASSUME_NONNULL_BEGIN
                    (unsigned long) envelope.sourceDevice);
 
         [OWSDevicesService refreshDevices];
-        [self.profileManager fetchLocalUsersProfile];
+        dispatch_async(dispatch_get_main_queue(), ^{
+            [self.profileManager fetchLocalUsersProfile];
+        });
     }
 }
 

SignalServiceKit/src/Messages/UD/OWSRequestMaker.swift

@@ -225,6 +225,8 @@ public class RequestMaker: NSObject {
             // mark recipient as .enabled.
             udManager.setUnidentifiedAccessMode(.enabled, recipientId: recipientId)
         }
-        profileManager.fetchProfile(forRecipientId: recipientId)
+        DispatchQueue.main.async {
+            self.profileManager.fetchProfile(forRecipientId: self.recipientId)
+        }
     }
 }