When ETC updates are made to a project's resource ETC through XOG, the ETC updates reflect correctly everywhere except on the Resource List page in Classic and the Resources Workspace in MUX.
16.2.3 on
These curves are found in the PRJ_RESOURCES table and are called ODF_TOTAL_ETC and ODF_NK_TOTAL_ETC. They are newer curves on the PRJ_RESOURCES table.
Because these are total type curves they will only update after running the Time Slicing Sync job.
Make sure the Time Slicing Sync job is scheduled even if you are not using MUX.
If you need to activate the Aggregation Feature which is needed for the Sync job reference: Enable or disable the SQL Curve feature toggle