As a result of the good (?..no) fortune of having an eye infection which is temporarily impacting my vision, I’ve had to turn on ginormous fonts on my Samsung Galaxy S8 Plus. Doing so has caused Volumio to no longer start. Reverting back to normal font size and all is well. I’ve also tested on a Galaxy S6 Edge…same behavior.
If this isn’t easily replicated with other folks I’m available to provide extended debugging as needed. If I can see.