Very interesting. I'm in CA. Just checked my one client who has charitable contribution carryovers (although not from a K-1).  My carryovers DO show up on General Info.  I would if there are different limits on passthrough charitable contributions? I wouldn't think so.

Does the carryover show up on the worksheets of charitable contribution carryovers?

If not, I'd call Support and raise this as a software bug that needs to be fixed.

I'm sorry you're having to deal with this.  But good on you for watching in such detail to make sure your clients reap full tax benefits across years!