Can not use sklearn_adapter and WeibullAFTFitter with n_jobs = -1 in GridSearchCV

[AlessandroGuazzo]

Hello,

I get this error when using sklearn_adapter with a Weibull model and setting n_jobs = -1 (or anything greater than 1) in gridsearch cv

Any Help appreciadet!

[vuongd]

I get the same error message when using the cross_val_score function together with sklearn_adapter and CoxPHFitter. As soon as I select n_jobs = 1 everything works fine.

[clancia]

I am experiencing the same with v.0.26.0 and python 3.9.5