This one has the translate button, but gives a 500 error when clicked.
Edit: Ok, so I just noticed something with this post:
It’s quite recent, less than 10 minutes old. When I went into it, it was around 4-5 mins old and didn’t have the translate button yet. The poster had separate post, so I went to check if these were the same questions, which they aren’t. After checking the other post and coming back to this one, the translate button showed up. Before it showed up, I used the translator in Chrome, but it did show up after a short time.
So, it’s possible it takes the systems a little time for the translate button to show up on most posts that aren’t in your set language, and we just have to wait for the system to catch up. I went back to the last one I reported, and the translate button is now showing on it.