Hello,

Under the Anaconda 2023.03 distribution I have installed Lightfm 1.17. The interaction matrix is small, shape (671, 9066) - coming from the small movie lens dataset. When running the code:
from scipy import sparse
from lightfm import LightFM
x = sparse.csr_matrix(interactions.values)
model = LightFM(no_components= 30, loss='warp',k=15)
model.fit(x,epochs=30,num_threads = 4)

in Jupyter, the kernel dies unexpectedly, a pop-up shows-up: Kernel Restarting
The kernel appears to have died. It will restart automatically.

In Spyder I get a similar behaviour, with the kernel restarting. I traced it down to the _run_one_epoch method in lightfm.

Any idea of the potential cause is appreciated.