We face problems in R notebooks . It might be related to Dataiku version upgrade or modifying active Jupyter extensions because this was our recent activity.
Now notebook usually crashes after some heavier (in terms of execution time) cell is being executed. For example, after reading a heavy dataset notebook has a black dot always present in the top right corner even though the cell is finished. It cannot execute any other cell afterward even if that cell is simple as`1+1`.
An example can be seen in the screenshot attached.