I tried rolling back the crimson package/driver to 16.9.2 and its still doing the same error.
This means that AMD has no driver available for any of its products that will work with Xcom 2.
Amd this needs fixing.
I have worked around this issue by disabling AA.
I wouldnt call it FIXED, but, well it doesnt crash anymore so thats something.
I too am having this problem, however disabling AA does not seem to fix it.
The card is fine otherwise; it appears to pass all benchmarks and tests, and other games work fine.