I've had one set where some of the horses had "torn" legs "Sarmartians" 020...
I suspected this had something to do with the large horse bodies, but whatever the reason their easy too fix by welded them using a temperature controlled soldering iron and trimming off any excess.
I've used this method a lot for alterations, conversions and repairs and it pretty permanent...
practice a bit on scrap sprue/figures to get the hang of it, its best to use small shavings of the same plastic as welding material... pick them up with the tip of the iron and make sure the temp is not so high that the plastic starts to burn... it should just be melting..

Good Luck:wink: