Why is fluid not entering this hollow object? Pouring water into a cup.
The cup does not have a lid, but the following situation is shown.
How can I solve this problem?

Here is the .blend file: https://drive.google.com/open?id=10zGUdGM0ecQkPkBijZ9jlZcaX9kja24Y
Here is video that show the problem: https://youtu.be/mONqiAtMlwQ
Perhaps its the issue of Volume Initialization of obstacle being set as Volume instead of shell.
Volume- considers the obstacle(although with a hole) as a whole block and bakes the simulation likewise.
shell- considers the cutoff portion and bakes what's required to.