GenAI Extended Video has flicker

Hello, I'm currently testing the Generative Extend Tool and I noticed some flicker in the extended portion wherein the brightness or video level seems to breathe. The start of the extended portion is also noticeable because of a jerk in the movement.

Is this because the feature is still in beta?

I'm using Adobe Premiere Pro v25.2.0.49 running on a Macbook Pro 2.3 GHz 8-Core Intel Core i9, Intel UHD Graphics 630 1536 MB, 32 GB 2667 MHz DDR4 RAM. OS is 15.1.1 (24B91)