Some freeform gradients change when selected with one or more other objects
The problem always seems to affect the same objects and certain color groups. I've attached two pictures: the first shows the gradient I created, the second shows how the gradient changed the instant I selected it with another object.
Please view this thread, as it includes a complete description of the problem and several photos:

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ABNAZ AACHI commented
When i reshape a gradient file, its color automatically changes to another shape on its own, which i didnt face before the update, pls fix the issue ASAP
New idea from comment
This comment was upgraded into a new idea: Radial gradient gets changed when a shape is resized -
Moxel LLC commented
As someone else mentioned in Adobe Community, the problem is that the colors of the free gradient "fall off" the shape during shape manipulation, including rotation and resizing. Hopefully this will be patched soon, it is crazy that a whole gradient tool is basically useless, as it can not be applied to anything that will be reused in different sizes in the future.