That is certainly unusual!
Have you made enough restrain potions that you have it mastered? It may help to try that.
She should have explained how to make a strong restrain potion, but in case not, it's: Red Pulp first and fifth, Nut second and fourth, Earth Moss in third.
Try having seven of those and see if that adjusts things?
3 years ago(+1)
Have you progressed with Bernard's quests? He has a quest that teaches you Restrain Potions which then you can talk to Orthra about teaching you the Stronger Restrain Potions, which will further the Lizard Tribe Quest.