According to the linked issue on GitHub there have been changes to the NSFW blur.
To be honest I did not find an option to blur NSFW posts in the Jerboa settings. I did only find the checkbox to enable or disable NSFW posts all together.
Can you explain how to enable NSFW blur? Did I miss anything?
I’m using Jerboa 0.0.27 from F-Droid.
There are blurred posts on 0.0.34. You should probably update to get them.