This is very typical of 38 brass.
Sometimes you can catch this before it happens by looking at the case neck, if it looks ratty don't load it again.
Nickle brass truly doesn't last as long as regular brass.. having said that, I love nickle brass because it's slick in dirty chambers. I can live with short case life.
357 mag brass has a similar problem.
Sometimes you can split the case in the reloading process by adding more flair to the case before the seating process. If it's going to split it may do it at this point.
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