The text states that it affects spell to hit and spell DC.

While holding this rod, you gain a +2 bonus to spell attack rolls and to the saving throw DCs of your warlock spells.

However, when activated it only affects the spell attack rolls, not the DC.

EDIT: It does affect the overall DC number at the top of the spell list, but not individual spell DC's in the spell list, which is confusing.

Expected result... all DCs listed should have +2 (or whatever) added to it.

EDIT 2: It does affect DCs... but I have a drow character, therefore his drow magic was unaffected... and that was what I was seeing. As you were.

There is actually still a bug that I had reported on the mega thread. If your patron grants you bonus spells (ex. Celestial gives you Sacred Flame), it is not being added to those, even though they are considered Warlock spells for you. Also, it would be nice if the rod's ability (to use an action to recover a pact slot) showed under Actions in the character sheet. I added a custom action to get around it, but it seems like actions grabbed by items should show there automatically.

Hey, man this is a really old post and seems like Beyond still has not fixed the issue. I'm just pinging to ask if you can tell me how I can assign the Rod's action as a custom action, cause I'm unable to do it myself.

What part of it are you struggling with?