While helping a user in the forum, we caught an compiler error in this situation:

• jsx preserve mode
• no ReactDOM as depdendency
• no custom jsx module
• (rescript 12.0.1)

I am not familiar with his, nor with any other use case, so I don't have a repo ready or the exact error message, but could reproduce it.

For reference: https://forum.rescript-lang.org/t/simple-way-to-convert-jsx-to-dom/7085/2