Your Sunshine could have been infested. All things are possible. Could be from the Sunshine plant, the warehouse of any middle man, the store where you bought it. First time I ever saw an RA was in a pot of Ocean Forest Happy Frog.
You may not see an RA on foliage. Root dwelling. Try the potato test. One inch slices of raw potato laid on surface of medium. Check underside daily for 10 days. They will be attracted to the potato if they're there. Good luck. -granger
You may not see an RA on foliage. Root dwelling. Try the potato test. One inch slices of raw potato laid on surface of medium. Check underside daily for 10 days. They will be attracted to the potato if they're there. Good luck. -granger