Problem to avoid the removal of some capacitors with low values with Spectre XL tool while performing transient analysis

Hi guys, I have a critical application where all capacitance values must be considered. The Spectre XL is removing some capacitors and I need to avoid it, I have searched for the solution in the user guide with no success.

I'm using Spectre XL Version 15.1.0.679.

A message example:
The shorted instance X16830_g_stdcell_g32.CC16312 is removed.

Thanks in advance!