Standard Duplicants Unavailable For Printing

This happens due to the way the printer checks validity of a print:
the printing pod rolls a random dupe, then checks if it is "valid", if it isnt, it will reroll the dupe, up to 20 times until it just goes with that last roll.

this check is done to minimize duplicate personalities (a personality is a template for looks and name, like "Pei", "Stinky", "Meep", etc..). However, this duplicate check is skipped for bionic dupes, due to there being only 6 in total; what ends up happening here is that you have a lot of the "normal" dupes in your colony, marking those as invalid for the duplicate check, so the printer will end up rerolling, ending up on a bionic way more often (pretty much guaranteed), since those do not check for duplicates in the colony

If you're printing about as often as you can, then it's about cycle 120 when you'd have printed one each of all the standard dupes, and the problem SGT Imalas identifies would become most pronounced. So really the timing is incidental, and the problem seems to be simply that the way the printerceptor prioritizes which personalities to print will progressively favor bionics to the point of exclusion as your game progresses.

It seems like a simple fix, hopefully the devs can do something soon, as I am experiencing the same problem. I only get offered non-bionics to print maybe once every three or four printerceptor offerings. Every time new printables are available I get offered at least two bionics, and only if I'm very lucky is there a non-bionic worth getting. I'm approaching cycle 500 and it's been this way for awhile, and getting more extreme each time I do print out a non-bionic.

I like the bionics fine, and enjoy having them among my dupes, but only want them maybe 1/5 of my total population - this problem makes population growth extremely and increasingly slow past 40 if you don't want very high numbers of duplicate bionics. Would be nice if the bionics were offered at the same rate as standards - or even if the number of bionics offered with each batch of printables was simply capped at 1, and standard dupes were guaranteed at least 1 per set of printables.