Next Patch include this update please.

[hammer58]

The game design screen has a list of required items printed in red that must be met when making a new ship or base design. In yellow they have suggested items that do not have to be met but are suggested.

Well when designing a Resort base the game does not prompt the user to add a cargo bay to the design.
What happens if you do not add a cargo bay? The Resort base will never get any fuel from the private sector and it will never upgrade either. If you have weapons on board it will not have enough power without fuel to fire them in combat.
If you order a retrofit it will sit in an upgrade state for the entire game and never upgrade.

So at least the cargo bay should be in yellow on the design screen with a remark if possible about not upgrading without a cargo bay on the design.

Their may be other designs that need this remark as well. So far I have not encountered any others.

Maybe the defense base as well?

PS. I am playing Distant Worlds universe ver 1.9.5.10
Hopefully future versions will be fixed!

[Fishers of Men]

The resort base design screen had been fixed to show the correct components necessary to complete the design in a past patch. It sounds like a dev needs to revisit this again. My first resort design in my current game behaved like you described. My second design worked fine.