Schematic check and save error

Hello,

I am a newbie to this forum so excuse me for mt first question.

I am getting some strange error without any explanation while performing "check and save" for my schematic on virtuoso.

Error reads:

*Error* round: argument #1 should be a number (type template = "n") - nil

Version: ICADV12.3-64b.500.21

Can someone share the reason for this and possible fix to try out?

Thank you!

Harsh