i really dont know. im in the same situation. Dont know what to think of the clones coming up next. Keep going or ditch them? The last cycle of these exact cuttings had zero problems. One interesting bit is how these buds came out popcorny and foxtailed, not at all like the batch previous which were fluffy but nicely BD bud shaped. The og kush grown in that same cycle came out foxtailed, with just a few of these little "seeds" in the lower scruffy parts. This BD cycle is the same effect, just much more pronounced.
to be clear though, i have not found anything that looks like male sac. these seeds though make me wonder, as they are all in little pods of three, much like a sac would be. These are all on the inside though, and the seed pod looking things are stacked upward as foxtail buds, not hanging low or freeballing in any way.
possibilities -
these clones were pollinated during veg
clones were stressed and ready to hermie from early on
the grow went weeks too long for BD and it hermied out of nothing better to do with its time.
this batch was stressed to hermie by ( heat / overcrowding / sauce condition / CO2 problem / light contamination / ... )
if indeed these are hermaphrodites, which at this point i can't confirm, then i'd probably think most about the latter two. Especially going long, and like you mention, it was far too overcrowded on this run. 1"x1" is fine, just dont use every single square! Many people growing BD chop as early at 50-55 days. trichs on chop here at day 70 were about 30% amber, right about where you'd figure would be good. these seed things are tiny and very undeveloped, so they are relatively recent. i dunno . . brainstorming.
i am also going to remove overdrive from the sauce for the SFV and the next cabinet round. other new sauce components this round were protekt, vermiT, and liquid karma. ppm was much lower this time than last too on basically the same sauce recipe.
i can go blue dream from the next clone generation of this same stock, or hindu skunk. havent found ogre yet, or a serious enough kush cutting. in the meantime, chamber is being cleaned and pondering potential modifications. no rush to get it back online as clones still need veg time.