MAX10DD devices seem to not support ADC Blocks ?!?

you can just take what i sent previously, and change the target device to the DA variant rather than DD. after doing so, and opening Platform Designer, you don't see the error in the window:

you can generate HDL successfully (ignore the warning since this is a dummy design and not fully hooked up to anything useful):

as for the parameters of the ADC core, it seems to be rather inconsequential. I've tried it with single channels, all channels, etc. and it didn't matter. the dummy design i previously sent has two of them enabled, as well as the sequencer. you can open the block to check it out for yourself.

i'm uploading the SAME DESIGN, with only the target device changed to DA vs. DD. You should be able to show someone else at your company what is going on, and maybe they can help you resolve this.