Problem printing envelopes in Pages from iPad

I've been using Pages on my iPad to print envelopes for years with no problems. Until now.

Now envelopes are almost always printing a reduced version of the text on the envelopes. I say "almost always" because once in a while they'll print ok. What appears with the problem envelopes is a micro version of the address and return address. Make sense? Instead of say 12 point type, what is printing is something like 5 point type.

It does this regardless of which printer I use.

If I use the same envelope template on my iMac it prints perfectly.

Any suggestions would be very much appreciated. I wonder if this is a bug from the new version of Pages?

Thanks,

Mark