Running retain 4.92, Windows 2019, DB is SQL Server 2017

This is a fairly new install for us (as of March 2021) We initially had 4.9.1 then upgraded to this version to address some 'bugs'.

I know the index optimization has ran in the past because I've seen a date on the Index Maintenance  indicating this (I believe it was manually last optimized in June?).

But now it jusy won't run . Under server configuration, Maintenance I have this configured

But when I check the index tab, it shows me the optimization hasn't run.

I try to manually start it, and looks like it runs, but a few minutes later it just returns to this screen and the date never gets updated.
I don't see anything in the logs indicating it's run either (if i"m looking in the right logs that is..the Retain server logs) 

Anyone else have this issue on this version?