LC_ALL=C minecraft-launcher
allowed me to run it and login. A hack but it at least opens.
I am on archlinux kernel 5.5.10-arch1-1
openjdk 13.0.2
Same issue here. I even removed it and java and reinstalled.
This is its intended behavior, use a repeater to extend the pulse and a comparator to keep it indefinitely.
it's not an intentional update, it's highly experimental and only exists to have the community help them find bugs. it will be fixed, if you get annoyed by this, wait until the final release comes out, it will not have these bugs.
there is no iron golem spawn egg anyways, you'd never get it even in regular form.
Looking at the output on terminal I also see this after I ran, not sure if that is to be expected:
[0324/095915.346883:ERROR:sandbox_linux.cc(346)] InitializeSandbox() called with multiple threads in process gpu-process.
SaveToBuffer failed
SaveToBuffer failed