It's disabled. I also tried using a VPN as suggested by SFR10 but that didn't help either, even after trying connecting to multiple nodes. I believe the syncing was fine, and it it only have broken after the latest big update they made, but the changelog (0.47.0) does not seem to have much related to XMR's syncing.
I tested Unstoppable again few days ago, and I had the same issue with monero wallet not syncing for a long time.
Only reason I reinstalled Unstoppable was to test their new exchange service with monero, but I didn't have the chance to do it.
Since now they have web version available I see no reason to install wallet just because of exchange, when I can simply use web version.
But I noticed they are using only centralized swap exchanges, so be careful with this:
https://swap.unstoppable.money