This isn’t uncommon to see in the outer location pin hole on a TD riser if the outer limb location pin hole isn’t slotted. The location pin is binding up as the limb flexes and splits the glass. It can also be caused taking the limbs off the wrong way.
I use a vertical mill and put a .040 slot instead of the 1/4” holes alone to insure this doesn’t happen.
If you have tight location pins, you should wax them first of all, and always wiggle the limb from side to side to get them loose. This is still true for even a slotted location pin to insure you don’t do this to the other pin hole.
Popping them loose by applying pressure to the bottom of the limb and lifting it up from end to end can bind up the pin and crack the glass.
As far as saving it goes… it may never go any further, or ….those splits in the glass could run up the limb or to the butt if it’s on that side.
Can it be repaired? Yes… but I would send the bow back and have the bowyer do it. Or consult with a bowyer to establish a technique to do it yourself. Kirk