lm/glm/glm.nb crashing in latest RStudio

In the latest update to RStudio (2025.09.1-401), is anyone else
experiencing system crashes with modeling functions? I'm getting the
dreaded "bomb" icon with "R Session Aborted".

It's happened for me on 3 different machines (2 of mine, one on a
university classroom machine) and with 3 different functions [lm(); glm();
and MASS::glm.nb()]. I've raised this on the Posit community forum with no
response. So, I thought I'd try here.

For context, everything runs fine directly in R - it seems to be RStudio. I
backed up to the previous version and everything is fine there as well.

Thanks,
Leslie

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