The latest update to Roc's Hardcore Techtree moved the repeatables processing to data-final-fixes from data-updates. This has resulted, seemingly, in this mod loading before Hardcore tech tree, as a result deleting all existing repeatables when loading a save.
https://mods.factorio.com/mod/Rocs-Hardcore-Delayed-Tech-Tree/discussion/69448477c0c904110d480005

Would it be possible to add hardcore tech tree as a hidden optional dependency to enforce the previous loading behavior where hardcore tech tree modifies the repeatable technologies first?

Thank you for your help.

I made a local copy of Finite Prod Tech and added (?) Rocs-Hardcore-Delayed-Tech-Tree to the dependencies list and confirmed that my repeatables were intact after loading my save.