Observers don't detect melons and pumpkins growing.

Please provide a screenshot of the setup with the F3 debug screen enabled.

How do I add a screenshot. Sorry for duplicating it. I didn't realize there was a place where you commented. I just saw the resolved part.

This report is invalid. Your game is modified.

My game is not modified other than optifine.

Thank you for your report!
However, this issue is Invalid.

Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please recreate the issue.

• Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.

• Any plugin issues need to be addressed to the creator of the plugin or resource pack.

• If you have problems on large servers, such as The Hive and Hypixel, please contact them first as they run modified server software.

Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki

If you can reproduce this in Vanilla Jackson Vliet then create a new report this report was resolved as invalid due to your use of Optifine

I recreated the situation in Minecraft without optifine. The result was the same. So if you could please reconsider your decision of it being invalid that would be great.

Ok. thanks