Pycharm fails to import numpy and snappy using anaconda environment

I am trying to work with the PyCharm Community Edition 2018.2.4 and Anaconda3.5 with Python3.7 (on Windows10). I set the Project Interpreter Path to the python.exe in the anaconda environment I want to use and I see all the packages I installed for that environment in the Project Interpreter UI.

However, when I try to import either numpy or snappy through the Python Console, I get an import error.

For numpy the error states:

"Traceback (most recent call last):
[...]
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control). Otherwise reinstall numpy.
Original error was: DLL load failed: The specified module could not be found."

For snappy the error states:

"Traceback (most recent call last):
[...]
ImportError: DLL load failed: The specified module could not be found.
During handling of the above exception, another exception occurred:
[...]
ModuleNotFoundError: No module named 'snappy._snappy_cffi'"

I am quite new to Python and PyCharm in particular and have no idea whether these issues are related. I had no troubles importing other modules from the same environment like json, cython, six,... in PyCharm. I tried importing both modules (numpy and snappy) through the conda prompt and Spyder and it worked just fine there. I also reinstalled Anaconda and set up the dedicated conda environment again, but the problem in PyCharm persists.

Any help will be very much appreciated!