Tier7 stats won't show up (network error?)

[OneMoreSecond]

Expected Behavior

I have subscribed Tier7 (confirmed by the battleground hall UI), so hero and trinket pick stats should be displayed every time.

Actual Behavior

Most of time they won't be displayed.
With a small probability, the stats can show up after I move Hearthstone window (maybe retry succeeded).

Running HDT as admin cannot solve this issue.
Rebooting my PC may solve the issue sometimes, but it's still not stable.

Steps to reproduce behavior

No response

Log/Screenshots

hdt_log.txt

In the log, the only line containing "trinket" shows there is a "504 Gateway timeout" when requesting stats.
I can access hsrelay.net and tier7 stats on it without any problem.

I lived in China mainland.

17:01:29|Error|HSReplayNetOAuth.MakeRequest >> System.Net.WebException: 远程服务器返回错误: (504) 网关超时。
   在 System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   在 System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 HSReplay.WebClient.<SendWebRequestAsync>d__13.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 HSReplay.OAuth.OAuthClient.<GetTier7TrinketPickStats>d__43.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Hearthstone_Deck_Tracker.HsReplay.HSReplayNetOAuth.<MakeRequest>d__55`1.MoveNext() 位置 D:\a\Hearthstone-Deck-Tracker\Hearthstone-Deck-Tracker\Hearthstone Deck Tracker\HsReplay\HSReplayNetOAuth.cs:行号 0