Lexus NX300 - Gas pedal Unresponsive for a few second after slowing down

Hey everyone,
I am a Lexus NX300 2019 owner (44k mileage), and approximately every 300-400 miles I experience an issue when I approach a stop sign, traffic light, or intersection. After coming to a near stop and then pressing the gas pedal, the car doesn’t respond for about 3-5 seconds.

- Even if I press the gas pedal multiple times, the RPMs don’t increase

- No check engine light comes on

- It started to happen at about 40k (never happened before), and as of now it has happened 7 or 8 times already. It happens once in 2-3 weeks at roughly equal intervals and it does bother me especially when I get stuck in the middle of intersection

- This issue never occurs while driving at speed. It only occurs when starting from a near stop

- I got a full car check up at a Lexus service, nothing wrong was found...

- I am not able to reproduce it intentionally, nor could a Lexus service

Any ideas what could be wrong with the car?