Thanks for confirming @Netduma Fraser. I've used a variety of routers over the years, but mainly from Netgear and the standard BT supplied routers, all of which allowed spaces. Its odd, because on previous versions of the firmware, I did manage to include spaces in the password by pasting, which then seemed to work fine. It's not a major issue, but will be a pain, because I will need to update on all my smart devices around the house... Anyway, thanks for confirming.
So far so good on the new firmware, so well done on finally getting it out.