The track pieces will clip back together unless they are broke. What usually happens is that there isn't enough of a ramp to push the track up the wall, it gets in a bit of a bind, then pieces unsnap or break.
I've never seen how it the e-chain works on a 2015, though. From the one picture it looks like a similar problem; the e-chain did not go down the hole and instead bunched up against the wall and got smashed by the slide.
Ray
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2020 Georgetown GT5 34H5
2020 Equinox Premier AWD 2.0L/9-speed