If some users upload files to the serve,r the uploaded file is incomplete on the server. This are pictures in the format png.
I look into the temporary folder and see that the file is available but there are too less bytes. After changing the ending and opening it, I see that only the upper half is available. There is no size when this happens.
This happens only with some users. From other ones the complete files are available.
And it happens only the the new Webtoolkit. The same function works fine with the old Webtoolkti.
Does someone has an idea what I can change.