Well anystream only downloads what the provider sends it. There's nothing it can do about that. I've encountered this a few times myself, but the specific subtitle lines were missing in the prime video app for that title as well. Meaning they were already missing from the start, anystream didn't remove them. That said, as already stated, if you have a problem provide logfiles from the most recent version. In your case your OP has logs from 1102 but not from any of the subsequent versions.