Good evening. Great to see it is working. I've been checking it on my end as well and the mobile mode is being detected now, with or without CloudFlare.
Thank you for the links, I'm going to read it and see what could be done if in case it stops working again. And maybe forward it to CF and see what they have on their end.
On the /wb/ and /tome/, my installation used the /tome/index.php format (I can't remember what the WP Codex calls it). With all WP related files under /wb/ folder. Then I turned on multisite.
It was after migrating (manually, select posts only) that I saw the entry in the codex that combining the index.php-only format and multisite is not advisable.
I hope it wasn't the cause. But if it is, I hope it can still be merged.
Thank you very much again.
Best Regards