I was navigating to this thread (opened in a new tab if relevant) and received the following error:
https://i.ibb.co/x6TfKc9/odderror.png
I opened a number of other threads in new tabs, all of which opened correctly with the proper account. I was eventually able to open the thread.
Using Google Chrome (77.0.3865.120 (Official Build)) on Windows 10 OS Version 1903.
Please let me know if you need more information.