Hello.
When using the “marker” or “underline” rich text commands in TMP, if a fallback font is part of the affected text, it will not reflect the effect of the command as the original font does. I have attached an image that shows this problem. (In this case, the characters that look weird i.e. the kanji, are in a fallback font)
I found this thread TMP Fallback font underline bug which might be the same problem, and I was wondering if some progress has been made in this aspect.
For English or related languages it might be not such a big issue to work around of, but for Japanese (or Chinese), this is very hard to work around because of the amount of characters needed in the font assets.
Thanks.