Master Merchant only shows one guild

[nyssa]

Can anyone help me find out why Master Merchant can only see one of my guilds? I belong to three guilds in total but it only seems to recognise the first guild I joined, which I don't use for sales. Other guild members can see my sales in Master Merchant.

I have tried the following:

1) Uninstalled ALL addons using Minion, then deleted any other obvious files left behind in Windows Explorer. Restarted Windows, to be sure.

2) Re-installed ONLY Master Merchant, but it still only sees my first guild.

3) I then assumed that it might be a problem within ESO itself, not correctly reporting my membership of my second (trading) guild. So, I joined a third guild today to see if that one showed up ... but it doesn't.

I'm stuck for ideas now. Can anyone suggest what else I could try to get it working?

Thanks.