This is my last effort to find a fix for this before I find a different client to use. So far I have:
• Made sure hide NSFW posts is enabled on the web client
• Made sure hide NSFW posts is enabled in voyager
• Signed out and back in on voyager
• Signed out and back in on web client.
Have you tried something other than Voyager? Boost maybe?
Looking into Mlem from a suggestion here.