Been there, done that, saw plenty of pictures, just like mine, of a broken shaft.
This pic, of my old motor, also shows a broken solid roller lifter.
These are two UNRELATED events. The solid roller that went out wasn't even on the same side as the broken shaft. In fact, I didn't even KNOW the shaft WAS broke until I tore down the engine! The motor ran fine, until I lost the solid roller bearings on the lifter.
From the looks of the picture you posted, I'm guessing you don't even have end stands for the shafts? Broken shafts is WHY end stand supports came about, the stock unsupported shafts break to often without them.
