5.3 with 6 speed hard down shift

[Metz54]

I have a 2020 Custom with the 5.3 and 6 speed. I have noticed when slowing down abruptly (not slamming on the brakes, but traffic light changes late) the down shifts can be very hard. Most of the time I only feel it going down to first but has happened into 2nd as well. Anybody have an idea on what the issue could be, or is there a problem at all? I cannot get it to do it every time so diagnosing would be hard. I have been driving 5.3 with 6 speeds for a long time an never felt anything like this. I'm also not sure if there were changes with the new body style on the transmission. 

[bghurc]

Same here. Took to dealership twice and they said "no issues". I made sure it was on the service record as a complaint in case this creeps up again in 3-4 years.