The Kunena team has announce the arrival of Kunena 6.3.0 [K 6.3.0] in stable which is now available for download as a native Joomla extension for J! 4.4.x/5.0.x/5.1.x. This version addresses most of the issues that were discovered in K 6.2 and issues discovered during the last development stages of K 6.3
When posts are made in forum, the text is very small.
I am using numina_ex template, but I don't know if it is the template that controls text size or something else. I could not find anything in the component settings for kunena.