Formal integral Assertion error

[jsilvabeyer]

Describe the bug

I don't know if its a duplicate of #2543 so feel free to delete the issue if its the case.

With some luminosities the formal integral fails with error message:
AssertionError: Incorrect I_nu_p values, max relative difference:nan
The real/virtual spectrum and the other properties (T, W, etc) seem to be normal.

To Reproduce

Screenshots

System

• OS:

  • GNU/Linux
  • macOS

• Environment (conda list):

Additional context

[wkerzendorf]

@jsilvabeyer we'll have a look at it. Not sure what is going on.