Spent a futile few hours today trying to figure out why Casper Admin 9.65 was crashing when trying to upload a new .pkg or .dmg to it. Went down a lot of rabbit holes before finally contacting JAMF Tech Support, who told me that there's an open defect with packages and .dmgs that have "com.apple.x.x" in their names.
Turns out that it looks like it might be something with any .pkg or .dmg with multiple periods in its name. As soon as I renamed my .pkg and .dmg to have only a single period, Casper Admin stopped crashing.
Hope this helps someone else.
