Menus missing text when using multiple profiles

Am running Kodi 17.1 and have seen this on both Windows and Android. Everything appears fine until I add a new profile, after which most of the menu items in the Skin settings menu are missing their text. I may have seen one or two other menus missing some text but it seems largely to affect the Skin settings one –
using Estuary I get only “General” on the left and “Enable auto scrolling for plot & review” on the right; the other items are selectable with the cursor but have no text.

Switching the skin or the font fixes it for the duration of the process but after restarting I get the same missing text. I’ve reinstalled on Windows and Android and both were again fine until I added a profile.

Has anyone else seen this? How do I fix it? I want to tweak the settings in each profile and having to switch the font each time to see what I’m doing is getting boring!

Many thanks,
Fred.