Tor blocked in UAE

On 1 Jan, I was unable to connect to a site I often use with Tor. It got 75% loaded and stopped. After 2 hours, I figured out the UAE had started blocking Tor, and switched to obfs4. This worked until today at midnight. So I switched to meek, which worked. I connected to one yahoo mail account, finished, closed Tor before switching to my other yahoo mail account (I don't want yahoo to know they're both me). Tor only loaded 25%. It downloaded the network consensus, but could not load the network consensus. I closed Tor and tried meek-Amazon and meek-azure, but always, Tor could not load the network consensus. So I switched to Openvpn, and was able to use Tor in normal mode, without a bridge. (Of course, I had to reset my computer clock to match the VPN address). Does anyone know how the UAE is blocking Tor so that it cannot load the network status, and what I can do about it (in case they figure out how to block Openvpn).

Trac:
Username: mwolfe