I have updated our PDM test server from 2023 SP5 to 2024 SP5 using our backups.
When I double click our tasks inside PDM administration tool, a message I have never seen in the past comes out and after pressing OK the normal TASK dialog with the task settings came out:  "Hash argument must have some string."

What does it is supposed to mean?

It happens every time when I double click on every tasks even the standard "print" and "convert" ones that we do not use.

Everything in the PDM update went fine without errors, I updated the standard convert and print tasks, a third party addin, dispatch.
For our customized convert and print tasks I have not yet reset them to the current SW version as we have some customization and usually (at least for the past updates)  it did not change too much in the script.. (I plan to reset them anyway)

@TI  Sorry again to inquire you for the strangest things...