Hi, thank you for reporting the issue and sharing the project and media! This is extremely helpful for us. We will investigate this issue, and in meantime can you to try few things-
1. In Advanced section, turn off "Fast Analysis". See if it fixes the issue for you.
2. In Advanced section, turn on "Detailed Analysis". See if it fixes the issue for you.
Also I tried stablizing your footage in latest Premiere Pro (Beta) v15.0.0 (27), and I am able to get good results without any issues. So you can try this workaround as well. I used the default settings in Warp Stabilizer.