Just an update to this, I tried re-mazzifying but that didn't cure it (I didn't actually think it was Mazzleui at fault but it was worth a try) so I just deleted the char and made a new one with the same name. Oddly the problem came back with the new char.
Deleted that one and made another.. again a Mage with all the same characteristics and the same stuff ticked and pressed in Mazzle but this time with a different name.
Problem gone.
The name I was using for the problem character I had used before and deleted the char so I can only think it was some hangover of settings from that long gone guy of the same name.
Anyway wierdness now gone.
Oh and I'm not having any real problems Mazzifying new characters, I have fully updated using wau and followed all the instructions in the 2.4 thread.
I will say that I replaced bongos with Bongos2 and I have to place the bars and buttons manually and I untick the bit in Mazz that asks to set buttons and bars. I also use Cfilter and set chat boxes 6 and 7 to display the info I want and that works a treat.
But all that said I can say that if you follow the instructions to the letter and are prepared to "dig in" and manually set some stuff the Mazzle UI works without a hitch or fault.