Thank you for that. I had guessed that that was where you meant, but (as I was taught while working a while ago for the product publications department of a computing company of which you might have heard) if obvious or suggested remedies for a problem fail to work, and there is room for doubt about the precise sense in which any jargon is being used in the explanation, then the most efficient response is not to make assumptions but to ask for clarification before proceeding further.
This problem now appears to have miraculously cleared itself without further action, or, at least, without further action from me. (To be clear, after installing the 9.4 WoT patch/update and before posting here: I had previously: downloaded and installed the latest XVM in the World of Tanks folder; restarted World of Tanks; restarted Windows; deleted, re-downloaded, and reinstalled World of Tanks; reinstalled the latest XVM; restarted World of Tanks; restarted Windows. All without effect.). All elements of XVM are now working for me, including stats, should I want to use them. I don't know what you did, but whatever it was, thank you.