Tongue tie related?

Hi mamas! My 2month old makes a clicking noise while breastfeeding. At first, I thought nothing of it because it doesn’t hurt when she latches and she’s gaining weight just fine. It doesn’t seem to bother her but is that sound concerning? She does have a tongue tie so not sure if it’s linked to that but so did our firstborn and I breastfed him 21 months.. just looking for advice if the clicking sound is normal! Thanks in advance