Hello Sonja,
This sounds like something is borked with the CRM or something in the integration, due to the nature of your business I would open a Care ticket with our Integrations team to take a look under the hood to see whats going on and if deemed they will involve the telephony team as well.
Please provide console and network logs of the behavior as well as interaction ids. These are very important for the investigation.
Cheers,
------------------------------
Cameron Tomlin
Online Community Manager/Moderator
Genesys - Employees
------------------------------