Auto capitalisation doesn’t work with emojis

if I avoid emojis completely the auto capitalisation facility works perfectly, just as it always had under iOS17 on my iPad Pro WiFi 11”. When I upgraded to iOS18, as soon as I inserted an emoji, no capitalisation, neither new para nor after a full stop. Even removing the offending emoji doesn’t help - once any emoji has been inserted (using the globe key) auto capitalisation stops working.

Sometimes I’m reduced to typing, say, an email without emojis and when finished, going back and adding the emojis retrospectively.

I’ve truffled with this for 2 months and wish I’d never heard of iOS18. I tried the 18 upgrade to 18.2 but that made no difference.