It would be very interesting to see photos of these fish, wild or F1 yellows are supposed to be quite rare internationally probably what I would call nigh on impossible to see in NZ.. Of course it doesn't mean it can't happen
My advice for you is if you want to breed from these fish then keep them in a species tank or if you have to mix them then mix fish from different groups, ie peacocks and mbuna to reduce the chances of cross breeding. The fish you have listed can and will all cross breed, the biggest risks being red zeb x yellow (very hard to tell from looking at the offspring) and your powder blues and red zebras. But if you just want to enjoy your fish keep them all together see what pops up and maybe give them away if things get too busy for you as you can't really guarantee their parentage. Maybe the "some weird ones" is a result of crossbreeding or the ones that didn't throw the same way as the others?
Another thing to consider is did you buy any of these fish with scientiffic names (I can assume not when you started trying to match your powder blues to 2 different names) or just the common names you have quoted? Alot of people do sell fish with random names such as red zebra (for anything orange could be hybrid or anything else), powder blues (anything blue with black markings on fins). Having proper names assigned to random fish is very common with zebras generally I won't touch them from people unless I know they know what they are doing or they are fresh imports with proper names from a reputable importer.