Upon placing a mechanical block, the game crashes, no freeze or anything, just straight crashing to desktop. This also produces no crash log.

Here is a link to a youtube video of, first, showing the mods folder, launching minecraft, creating a fresh superflat world for time saving on generation, and placing down a handful of regular blocks, and upon placing the first mechanical block, it shows an instant crash with an exit code 0. (https://youtu.be/bjwvH-Sys0g)

Secondly, here is the latest log from generation that world,
latest.log

Java and forge versions are also completely up to date, and this is on a freshly wiped minecraft folder, with forge installed and of course, create-mc-1.16.5_v0.3.1a

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.

Set experimentalRendering to false in your create client config, or run /create experimentalRendering off before you place a mechanical block. What's probably happening is that your pc doesn't support experimental rendering, but I failed to properly detect that.

In case it helps, a player on my server also experienced this. JRE crash caused by OpenGL and Create (1.16.4+ v0.3.1a). No Minecraft crash log. Here is the JRE crash report: https://pastebin.com/DR28dDvu

In his case, Windows reported that his drivers were already up to date, but manually updated them fixed the issue. Looks like he was running Windows 7.