Bug in instructors payment

Hello, it's me again, reporting another bug, sadly :( Let me explain. We started selling in USD but changed to EUR some days after, so we wanted to pay the instructors their commissions in USD and start flat on EUR as we are going to pay in a monthly basis. It was ok because commission calculation and multi-currency is working smoothly. We started the process of payment today and i generated the first payment (112.45 USD) successfully via paypal. But when i marked the "select" check and pressed the "mark as payment" button, it generated automatically payment emails (via touching points) for the other 4 instructors and the pending commission balance table of all of them was set to zero, but i didn't had the payment yet and i'm completely sure that i had only checked the first instructor only!!! In LMS > payments appear only 1 payment though, not the other 4 ??? I don't understand what happened here, but i need it to be checked as i can not make my EUR payments in bulk. They will be done only when we speak with the instructors and if that bug happens again will be a complete miscontrol for us. Also, while i redacted the email and took the screenshots, i noticed that when i enter the commissions screen the query monitor plugin which i have activated to monitor resurces (as site is also being pretty slow lately) is marking some php errors. Maybe it could be helpful to debug. I will share login credentials and some screenshot in a private reply. Please let me know what we can do to check this out. If you need me to set up a test account i'll do that, but i'd like that you have a look in the main site to see what can be happening as i need to do payments on december 10. Jean