Minecraft on gamepass ultimate, is it still playable if I now have core?

No. Minecraft is not included with Core.

Are you sure ?

Gamepass for console doesn't include multiplayer

Gamepass core and ultimate do

If you plan on playing online you need gamepass and core if you want access to gamepass games and multiplayer

Though with the two plans it's more cost efficient ro do ultimate

Now if the core and multiplayer access is al you need then the 11.99 core plan will do with the limited 25 titles

I think you are confusing gamepass for pc for gamepass for console

Gamepass for pc doesn't have core requirements since core isn't needed for pc since you have multiple free services

But on console you onlyhave one therefore MUST HAVE core to play multiplayer and ultimate if gamepass games and cloud is needed

It doesn't unless you applied for gamepass for pc NOT ultimate

In which case your gamepass core doesn't apply to gamepass for pc or console

You will only get the upgrade at 3/2 on ultimate it's not 1/1

Your core still applies but not on PC

Unless you get ultimate

When you upgrade to.ultimate it does cancel core but upgrades the time at 3/2.

You would have to check if you have ultimate now and read the new expiry date

The system would've given you a quote for the upgraded time if you got ultimate

I have 3 months of gamepass Core, can i get them upgraded to gamepass ultimate? I am not able to use my gamepass core on PC?

Two things

First you need core or ultimate for multiplayer

Gamepass for console doesn't include multiplayer and needs core or ultimate

And yes you need a payment option on file for ultimate

Ultimate os cheaper then core and gamepass for consolr