I have updated the sample project. After running the project, just try to resize the window by its height(contract and expand the window). It can be reproduced now. Please let me know if you find any difficulty in reproducing.
I had difficulty in uploading the updated project.
It showed error message:The selected file(s) cannot be attached because it may exceed the maximum attachment size (2 MB) or is from not allowed type (allowed: .gif, .jpg, .jpeg, .png).
Updated .Zip file was more then 2.5 MB. With .7z file format, it is ~1.84 MB but this format seems to be unsupported as upload format.
So, please download the attached file and remove .jpg extension and extract using 7z.