I agree it is happening. There are some fine adjustments in the soft top lower rear frame I suspect are either too loose or maybe causing window to be too tight. Thereby not engaging front and rear channels properly.Understandable. But, just because the issue hasn't happened to you doesn't mean the problem doesn't exist. There are many threads on the window pop-out topic. Tolerances, incoming materials, set up differences, quality checks, differences in operators/inspectors, etc all can lead to a short term issue that doesn't affect all vehicles.
A certain unnamed manufacturer had to disassemble and scrap a bizarre number of partially-built vehicles years ago because one operator was using an unapproved "mold release" that contaminated class-A surfaces. It didn't affect all within the mfg date or VIN range because this operator didn't work every shift. - this is just one example but it's very common.
My guess on the window issue is that whatever gauge/fixture they used for soft top framework got bumped, misaligned, or the operator doing the assembly had one too many coffees (or not enough) that day. You'd be shocked at how easily a disgruntled or constipated operator can muck things up. XD
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