Enhance Installed version 10.1.0, all Nginx servers. When first added the WordPress on Server A, the permanent link rewrite worked fine. After moving the website to Server B, permanent link 404, not working anymore. Then I moved the website back to Server A, still the same permanent link 404. I moved the website to Server C, same 404.
I also tried to add a new WordPress on Server B, worked fine. Then moved it to Server A, permanent link 404.
I tested this with a new server cluster with newly installed Enhance 10.1.0 and newly added cluster servers, same problem.
There must be something wrong. Before this month's update, I've tested moving server a few times without this problem. @Adam Would you please contribute some ideas on this? Thank you!