Uploading PNG's - Images changing
I'm trying to upload PNG files. Here is the file before upload:
10_Second_Sales_Scripts_B1369-correct.png
Here is the resulting file:
10_Second_Sales_Scripts_B1369.png
The transparent background is gone and some weird black background is added.
Here is another example:
Before upload:
A_New_Supervisors_Guide_to_Motivation_and_Recognition_B1689.png
After upload:
A_New_Supervisors_Guide_to_Motivation_and_Recognition_B16891.png
In this case, a weird hatchwork of background lines were added.
What's going on here?
Thanks