Hello and welcome.

Yes, many others and I have successfully crossed ‘Evergreen’
x H. papilio. With regard to their
ploidy, ‘Evergreen’ (a hybrid of H. cybister) and H. papilio (a Hippeastrum
species) are both diploid. No photos to
post yet. Nurturing these beauties until their maiden flowering requires time and patience (especially without the provision of supplemental artificial light during the winter months).

I believe that ‘Tres Chic’ is a tetraploid hybrid. Seeds of ‘Exotica’ x ‘Tres Chic’ have been offered on eBay, but I can't vouch for the accuracy of the listing. Although ‘Tres Chic’
flowers regularly and prolifically for me, it has not produced viable seed as
either the pollen or seed parent.
Perhaps others have had different outcomes.

thanks ya I noticed that some varieties are sterile. like Hercules and tres chic. its almost like the growers who created these varieties and then patented them made sure they were genetically sterile on purpose to prevent us hobbyists from messing around on there creation

Sterility
exists even in certain Hippeastrum species. For example, H. petiolatum is a sterile triploid, that can
only reproduce asexually. Sterility
may also result from an earnest desire to create beautiful and unique hybrids. Breeders (including we passionate amateurs) who seek to produce novel characteristics, and recapture or enhance highly desirable traits, which have been bred out over the past 200+ years; may experiment with diploid × tetraploid crosses. The resulting
progeny are usually triploids that are typically, but not always, sterile.

Plantman,hercules pollen is fertile.I'vre never tried it as ovary parent,so I don't know.I've had many seedlings fro m hercules,. UIt s color genes are strong. Most seedlings from it have only two flowers per scape.

Yeah, Cybister and Papilio are about as compatible as cross species pollination gets.