Notebook validation error as soon as I use tqdm_notebook

[mmagnuski]

As soon as the cell that uses tqdm_notebook finishes I get notebook validation errors:

Notebook validation failed: {'model_id': 'f4270041efc8488dafcd3d5454be36a2'} is not valid under any of the given schemas:
{
 "model_id": "f4270041efc8488dafcd3d5454be36a2"
}

I don't get these errors if I remove all cells that have tqdm_notebook widget.
The error pops up every x minutes (din't check how many) so it can get a bit irritating.

My selected packages:

anaconda                  4.1.0               np111py35_0         
conda                     4.3.21                   py35_0         
ipdb                      0.10.1                    <pip>         
ipykernel                 4.6.1                    py35_0         
ipython                   4.2.0                    py35_0         
ipython_genutils          0.1.0                    py35_0         
ipywidgets                6.0.0                    py35_0         
jupyter                   1.0.0                    py35_3         
jupyter_client            4.3.0                    py35_0         
jupyter_console           4.1.1                    py35_0         
jupyter_core              4.1.0                    py35_0         
jupyterlab                0.12.1                   py35_0    conda
nb_anacondacloud          1.1.0                    py35_0         
nb_conda                  1.1.0                    py35_0         
nb_conda_kernels          1.0.3                    py35_0         
nbconvert                 4.2.0                    py35_0         
nbformat                  4.3.0                    py35_0         
nbpresent                 3.0.2                    py35_0         
notebook                  5.0.0                    py35_0         
python                    3.5.1                         5         
qt                        5.6.2                    vc14_0  [vc14] 
tqdm                      4.14.0                    <pip>         

[mmagnuski]

Additional error info I see in the console:

[E 16:12:54.332 NotebookApp] Notebook JSON is invalid: {'model_id': '0fd7c2f469244f1fad50192741843939'} is not valid under any of the given schemas

    Failed validating 'oneOf' in schema['properties']['data']['patternProperties']['^(?!application/json$)[a-zA-Z0-9]+/[a-zA-Z0-9\\-\\+\\.]+$']:
        {'oneOf': [{'type': 'string'},
                   {'items': {'type': 'string'}, 'type': 'array'}]}

    On instance['data']['application/vnd.jupyter.widget-view+json']:
        {'model_id': '0fd7c2f469244f1fad50192741843939'}

[mmagnuski]

I no longer have this error (after some updates), so I will close that.