Still working well through 1.27.2.5929 for me, too.
This release includes a logging change that may help diagnose further issues along these lines. If you are still having problems, please post new logs or consider starting a new thread as the issue as described above appears to be fixed.
(Logging) Improved context provided in log lines related to asynchronous HTTP request processing (#13530)
Still working for me through 1.28.0.5999, which is the first 1.28 build I tested. Since the original issue has been fixed since an early 1.27 release more than a month ago as well as every additional release to follow, I am inclined to let this topic close unless anyone else is still relying on me to test updates.