Weird IPSec behavior

Hello!

Currently I’ve got a weird issue with IPSec, here’s the scenario:

IPSec tunnel between 3 sites, ESP
Everything works as intended except that the tunnel with one of the sites looks “repeated” and I get flooded with the following messages in the log:

phase1 negotiation failed due to time up site1IP[500]<=>site2IP[1]

This message is only seen on site1 router, it is a weird thing since the tunnel is working properly, another thing is that I see on the remote-peers list site2IP listed twice, when I kill the connections they rebuild quickly and after a minute the same problem is seen. I’ve checked all the configurations and the fact that everything seems to be working as intended (I can ping all the networks behind all the routers from any router) makes me believe this is a bug.

Any information about this? it’s a Hex running BFO 6.34.6