Just something went wrong in the cutting process.
The plant decided to damp off (and commit suicide).
If it's rooting fine now, it was just a fluke that it damped off.
Good question.Has anyone gotten a mushy stem on a cutting in a bubble clone that survived? I cut the mushy part off yesterday and now the stem has root bumps, will it survive some how? It looks fine now, but is that problem that can spread to the other clones?