My reflection probes only reflect one side. It doesn’t matter whether they’re baked or realtime, the same thing happens.
After getting a different computer, everything works fine. It was in fact my graphic card’s fault
If it’s any comfort, I’m having problems getting decent results with reflection probes as well - they seem SUPER inconsistent and unpredictable.
What you can try is to move the bounds of the box to be just shy of the bounds of what you want reflected - i.e. don’t fully encompass what you want reflected. For example, if doing a room, the bounding box should be just inside the walls, not beyond the walls - at least that’s what I’ve found.
One more thing - it’s also worth looking at the “Reflections” setting in the Lighting panel - try setting it higher than one to see if that helps.