I’m using conda - not pip - as my package manager. With the first version (from conda-forge) I get the old version (1.14) of tensorboard which gives me these “FutureWarning” errors, I think from numpy. While it works it seems it is not gonna be supported for much longer.
That is why I tried to use the new version (2.0, which is the same version you currently get with pip, so I expected it is gonna behave the same), but I got the error mentioned. Now yesterday this package was updated again and after installing the new updated package (still version 2.0) the error disappeared, so I guess it must have been an error on their side.
Thanks for answering anyway!