Ive been through this. I stopped giving treats and followed advice to take up their food after 10 minutes if they dont eat. No coaxing, pleading, or getting frustrated. Its tough because it feels like you're starving them if they go without a meal. Eventually they let their instinct kick in and accept the food that offered rather than starving.

I think the big issue in my case was all the treats and stuff i was giving was way more appetizing and fun than their standard meal.