Option to send MMS dissappear

I have Sailfish (XA2 Dual Sim). I found out that from sometime ago I do not have possibility to send MMS.
Normally I could add picture to message and it worked. Or share picture via MMS.
But not any more.
What happen ? Did I accidentally change something in settings ?
Or it is “feature” now ?

For me, the fix was changing the APN settings for MMS to the ones specified by the teleco (I’m on EE in the UK) rather than the ones provided by Sailfish as a default (and which were wrong - hence MMS didn’t work). I just googled the correct settings on the teleco’s website, entered them in in settings, and then MMS worked fine.

I have exactly same settings as my telco operator recommends

Any idea ? How could I send MMS then ?