Thanks Jordy – I’m hosted on Siteground and use their SiteGround optimizer, so I can try turning that off. I’ll let you know if I still have a problem (although I’m away for a week or so, so I won’t be able to try again until then).
Forgot to say in the original message, I’m almost certain I made the additional chatbots by using the “Duplicate” action. Just saying in case that’s relevant.