Now that you say it, I’m not using the original cable, and I don’t recall what happened to it because it’s been so long ago (could’ve been a similar issue to the one you described).
I couldn’t find a Shure original cable to replace mine with right away, so I got a compatible one and been rolling with it ever since. It’s slightly thinner, more flexible and without the thicker malleable parts near earbud connections. I was cautious about those differences at first, but in the end grown to prefer it more than the original, these thin wires wrap around my ears just fine.
As a side note, one of the things I treasure about the design of these IEMs is the replaceability of the cable. The IEMs themselves can probably survive for ages, which gives a nice feeling among the increasingly disposable electronics—I just hope the model would still exist on the market when something eventually happens to my unit.