Transient deletion failing

Replies: 14

Hi, I’ve run into two issues with delete_transient() when redis-cache is active:

1. delete_transient never returns true anymore even if a transient is/was present (not sure if deletion from the object cache is taking place at all, see #2).
2. On set_transient the transient is stored in the database (why? is redis-cache doing that?) but on delete_transient the transient is not deleted from the database.

I should note: This issue occurs on a subsite on a multisite installation. Is this a known issue or is this happening only on this installation?