2 different email threads showing up under one conversation in conversation view

2 different email threads showing up under one conversation in conversation view

Hello,

I have 2 different email threads (to 2 different email recipients) - the subject line of each of these threads is very similar but not exactly the same, however, all the emails relating to both threads are showing up under a single conversation in conversation view which is slightly confusing ( I would expect conversation view to create a separate conversation for each thread).

Any ideas what the issue might be?

Many thanks,
K