After migration from AX 2012 to D365FO I noticed a strange thing with one ISV module labels.
Some of them are perfectly resolved by their old notation with @ in the reference; but none in a new style.
As suggested by in this old thread https://community.dynamics.com/365/financeandoperations/f/dynamics-365-for-finance-and-operations-forum/312828/label-issues-in-sdp-deployment?pifragment-109037=2#responses
and explained by one of my colleagues, I simply need to delete these files from K:\AosService\PackagesLocalDirectory\ApplicationSuite\ folder. (All D365FO service must be stopped)