Transmission slip??

99 Automatic 186k miles

Hello again,
Today while driving home from work I had a weird occurrence when taking off from a stoplight. I was not flooring it or anything, but the car acted as if the clutch was slipping and then all of a sudden grabbed after just a moment, and even chirped the tires. It did it again after, and I can make it not do it by taking off more slowly than I normally do, but was unsure of the issue. No codes (other than emission of course) so I’m kinda stumped. If it was a manual I would compare the feeling to clutch dumping but since it’s an automatic I’m not sure where to start. Any advice would be welcome. Thanks!

pretty sure it’s not related, but I lost my speedometer / tach lights recently as well. Car is acting completely normal other than the main issue though

It’s an automatic. They’re not known for their reliability. That being said, low on fluid, blocked valves, worn plates.