I see the same type of warning on a non-exit and non-guard relay. First time today:
Apr 12 10:11:35.000 [warn] Rejecting INTRODUCE1 on non-OR or non-edge circuit 2147515154
Apr 12 10:14:45.000 [warn] Rejecting INTRODUCE1 on non-OR or non-edge circuit 2147486526
Felix
Apr 11 11:25:35.000 [warn] Rejecting INTRODUCE1 on non-OR or non-edge circuit 2147497125.
-Stephan
0.2.4.20 here (on an exit node), seeing them as well but they're very rare :
Apr 8 23:06:37 localhost Tor[26326]: Rejecting INTRODUCE1 on non-OR or non-edge circuit 2147513111. Apr 10 04:49:54 localhost Tor[26326]: Rejecting INTRODUCE1 on non-OR or non-edge circuit 2147513691. Apr 12 13:06:24 localhost Tor[26326]: Rejecting INTRODUCE1 on non-OR or non-edge circuit 59052. Apr 12 17:39:39 localhost Tor[26326]: Rejecting INTRODUCE1 on non-OR or non-edge circuit 2147494026.
Tom