Last night when replying to a topic on this forum using my Samsung GS5 there was no reply button or symbol that i could see. Ended up requesting the desktop view to reply which switched nicely in Google Chrome Android.
Maybe i missed it somehow?
Regards, Ed
It’s the square ballon shape icon with the big plus sign which I am using to type this.
do you still not see it?
OK now I see it. Dang.. Don’t know how I missed it. Using the phone to reply.
Regards, Ed
It can be hard to work out what can be used. Sometimes I wonder if text buttons might not be best. Would appreciate other views on this in fact…
@kvr28 then change it… 
see: https://simple-press.com/documentation/codex/api/template-functions-and-the-api/display-template-functions/topic-view/sp_postnewtopicbutton/
add a label and remove the icon argument (ie empty string)…