It's not just me; went to a makerspace and even the latest issue of servo can't figure out the EZ Robot software.
I bought my EZBv4 when it was brand spanking new in 2014 and mated it to a RoboPhilo. Couldn't figure out how to program it the way I wanted. Posted on the forum and got defensive deflections telling me to RTFM N00B. I got 110% certified (website could not count correctly), but still had no idea how to program the thing.
One of my old threads got necrolized and reminded me I had a $500 robot and a $100ish controller collecting dust.
I took the setup to a local makerspace, downloaded the latest version of EZBuilder, and out of the 3 of us, we could not figure out what was wrong or how it was supposed to be programmed.
This month's servo magazine has an article about the EZBv4, and the opening jist is that the software doesn't do what he wants, so he programs in something else and makes a direct connection to the board, also saying that the software was kludgy and gimmicky.
Now that you're up to speed, I think I might have a defective board, and I still don't know how to make the software work.
While at the makerspace, we found inconsistent behavior when testing servos. Sample programs did not affect the servos. The button on the webpage to put all servos to 90 degrees sometimes worked, and sometimes the servos went limp right after moving.
Both of the other guys there recommended that I buy a new board because the software was too confusing.
BTW the search function of the website can't find any of my old posts, but DDG can: https://duckduckgo.com/?q=synthiam+allanonmage&ia=web