I tried to upload the pixy2.svg file (30028-Pixy2_Demo_2020-18-01.svg) to Blockly using "upload blocks file" from the dropdown menu. That opened a window that allowed me to browse & select the svg file and gave the option of replacing or appending the file. I selected the file and it told me "The selected file appears valid." good. I selected "replace".
Nothing happened. I thought that since it was a large file that it might take some time, so I went off and did other things. Came back - still nothing.
So I wrote a short Blockly program (increment, loop and print a variable to the terminal) verified that the program complied and then used the download the blocks file option to my computer. Then went and tried the upload blocks file on that short svg file. Again nothing happened.
I have the latest version of the client software (v0.7.5) and tried both firefox and chrome browsers. I am connecting to the "http://blockly.parallax.com/
" site through the client software.