Blowing caps is normally expected for over-voltage.
Surge current is another possibility; some blow up if shorted out while full charged.
#1 is the one which was double voltage of #2 in some of your images. But both are high and almost equal in another.
Have you figured out why they blew? Any chance you have a PV string which is over max Voc?
With multiple strings, one could be too long but voltage is held down while a shorter string is in parallel.
Have you figured out why the two showed equal power, but one was double voltage while the other was double current?