Reviving this thread because yesterday I noticed that a similar/the same issue has come up again with Twitter.
I don’t know if it has been reported again in the previous days, but Webrecorder Desktop does not load Twitter at all for me.
I thought it might be an instance of the same issue that was solved by overriding the user agent string, so I attempted to do this on Webrecorder Desktop.
I entered into preview mode in order to be able to open Developer tools, and as you can see in the screenshot, even after switching to Googlebot, Twitter refuses to show itself.
I did test this on Conifer btw, both using Firefox and Chrome, and the technique described by @Himarsha worked. But on Webrecorder Desktop I haven’t had the same luck.
In fact, I experimented with using the Googlebot Desktop UA as well, and this caused Webrecorder Desktop to crash repeatedly.
Any ideas about what could be causing this issue?