I appreciate you for bringing this to our attention, kailash.iyer.
Currently, we have an ongoing issue that a Master Admin cannot invite an accountant. Our engineers are already working to fix this.
While our engineers are working for a permanent fix, we have a workaround so you can add your accountant:
Though we have provided a workaround, I'd still recommend contacting our Customer Care Team. They can add your profile to the list of affected users and keep you updated.
I'd appreciate your patience as we work on this. I'll get back to you if you have further questions.