In v10.1.1, I can select a group of images. Using Crop & Straighten, I select an aspect ratio of "2x3 / 4x6", the aspect ratio is locked on the master image. I then Synchronize the group of images, selecting only "Crop, Straighten Angle & Aspect Ratio". The entire group of images now has an aspect ratio of "2x3 / 4x6", with the aspect ratio locked. This would appear to be the desired effect, when syncing a crop at a specified aspect ratio.
Now, with the new v10.2, the same sequence ends up having only the master image with the aspect ratio locked! All other images in the selected group have the correct aspect ratio, but they are set in the unlocked state!
I have two computers, one with each version, they are replicating the above. This is a major hit. I'm performing this on hundreds of images at a time, I then need to go into each image and tweak the position of crop. With the crop unlocked, I can mistakenly screw up the aspect ratio.
System Specs:
Windows 10-64 (OS build 19041.867), Ram: 32GB, 4TB Raid 5, 4K monitor, NVIDIA GeForce GTX 1060 6GB
Lightroom Classic v10.2