[Appointments+] Issue with appointment details in Google Calendar

I have custom fields in the appointments+ confirmation form. And if someone put “$” in the field, after syncing with Google Calendar, the $ and first 2 symbols are cut of.
GCal:
https://monosnap.com/file/qNEyp7qzr7VASuOFzaH5MXigVyc16e

Appointments interface:
https://monosnap.com/file/bBmG4hKmDfBe1ejU31dX1yrsaI6Y8f