Hey mate I finally got a reply from CMEG when I was asking why I couldn’t short during a SSR:
Being an offshore broker, our clients do not have direct market access and as such, trades are executed through Capital Markets Elite Group in a principal capacity. Due to this, when stocks go SSR, the company is not willing to bear the risk that it imposes on the net market position of the company. As you have seen, we do not impose this on all SSR stocks but we do so on most. While this is not always the case, this is the stance of the company at this time.