Inibuilds/Microsoft A320neo not showing Top of Descent

[CBass]

I'm having some issues with the Microsoft/Inibuilds A320neo in MSFS 2024 and I'm wondering if anyone else is experiencing similar issues - or whether it's something I'm doing wrong.

For some reason, I can't seem to get the aircraft to show the top of descent on the Navigation Display - and when it does, it shows far too late - sometimes as late as 3nm from my destination airport!

Flying IFR, I set my flight up as normal, through the EFB and FMC.  The AP follows my predetermined flight path without issue and holds my desired altitude - but just doesn't seem to want to show my top of descent.

Is anyone else experiencing similar issues?  Cheers.