dynamics process wait for set regarding on email

Hi,

I have a process that sets regarding on incoming emails based on some internal criteria via CodeActivity.

After that I want to update the Contact(regarding) and set some fields.

I created a Wait condition (Email(regarding) Contains Data) but for some reason the process hangs at this step. Status of the process is "Waiting".

If I check the email, it already has regarding set.

If then I resume the process form Process sessions it continues as expected.

Any advice on how to fix this?