I was trying to upgrade a 20w16a world to 20w17a, but when I click "I know what I am doing," the game crashes.
Update: Lowering the allocated RAM didn't work
Environment
Modded: No
Resource packs: None
VBOs: Yes
OS: Win10 version 10.0
CPU: Intel Core i7-7700
3G of RAM allocated
GPU: Nvidia 1060
Thank you for your report!
We're actually already tracking this issue in MC-179841, so I've resolved and linked this ticket as a duplicate.
That ticket has already been resolved as Fixed. The fix will arrive in the next version or is already included in the latest development version of the game, you can check the Fix Version/s field in that ticket to learn more.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki