Odd mobile dashboard after changing to Debian

I’ve just changed to the latest EMONCMS 9.8.27 on a PC with 64Bit Debian Stretch and data restored from a Pi3,
On the desktop my dashboard displays correctly as it did on the Pi setup, but on an iphone some of the text labels have changed size and moved since the upgrade. Is there a fix for this or do I need to start again with a new Dashboard?