[Shamil.]

Originally Posted by Lynne

Do you have a test forum that has this same issue? It would be easier for you to figure it out there cuz what you really should do is unintall, completely, your mods until you find the culprit. The three you listed above don't look like they would cause the problem, but obviously one of your modifications is if you can fix the problem by disabling them all. If I had to fix this without a test site, I guess I would grab a piece of scratch paper and list every mod, then go to every thread and list every file and change it makes, and then start by uninstalling all the easy ones and then the ones with added files or file changes until I found the problem mod.

I do have a test site, however, these modifications aren't all installed. What seems to have fixed the problem is disabling:

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SecureWorks (sorry IBxAnders)

To temporary resolve the issue whilst I clone this vB instance to my private development sandbox and resume investigation.