CB Subs 1.9.1, Paid Subscriptions 3.0.0.

This just started happening a few weeks ago. All of our subscriptions are expiring properly
except for 2. On these 2 plans, the expiry date is set correctly, but the status is not set to X
(i.e., it remains A).

Any ideas where to look?

Grace period is none for both plans, as for all other plans.

The two plans that don't expire are a small minority of our subscriptions. All of the rest of them expire as expected, so the expiry process is being triggered (it's set to cron task and admin access).

I had looked for any differences, but I didn't find any obvious ones. Duration is 3 months, which is standard.

We just had a different problem (or at least a problem with different symptoms - a fatal error renewing a subscription of a different type than the ones that weren't renewing). I repaired the MySQL database, as the error log indicated database problems.

I can certainly imagine that a corrupt database could cause this problem. It will take a little while to see if this is now fixed, as these subscriptions are relatively uncommon. But we should wait and see before doing any more work on this.