Multiple Registration Confirmation Email does not shows individual sums

when registering multiple participants.
an email is sent to every participant.

While every participant gets a summary of the items that
were booked. The final Sum is the sum for the total of the participants. Individuals cannot get the Sum and Tax of their own Bookings.
The total only shows in the Sum of the first Participant.
But it does not show the items of the second participant.

we deactivated multiple participant registration.
Because this feature cannot be used as it is.

I am attaching the two emails as PDF.
In addition the Layout of the Line Items of both emails are very different.
If It is possible to adapt, we would be very glad to use it.

Thanks for your help