TOPIC:

do you mean you invoked professional function, in non-actived package?
vSetSelMarkup() can invoked when you drag text finished.

and, i saw you are using very old framework of our libs.

boolean succeeded = activeProfessional( act, "Bookkaze Co., Ltd.",
"This email address is being protected from spambots. You need JavaScript enabled to view it.", "M95IMF... (36 digit));

i call this function and it return true

and i call vSetSelMarkup after select text , i can copy text but i can't heightlight and i got that error