When I try to save or record, the application crashes. 

Job 1, './1BITDRAGON.x86_64' terminated by signal SIGSEGV (Address boundary error)

Someone else had the same problem and solved it like this:

"The root cause was ulimit nofile, my system was set to 10000000, after reset it to normal(probably 1000 or 4000, didn't remember), this issue was gone."

Does this solve the problem?

Set it to 4000, no change.

What is your OS and environment (Processor, Memory, GPU)?

Fedora 34, 16gb RAM, i5-10600k and UHD Graphics 630.

Sorry, 1BITDRAGON for Linux is only tested with certain versions of Ubuntu or Centos. Also you need to make sure you have the correct video drivers for the correct GPU's. Linux System Requirements:

• OS: Ubuntu 18.04, Ubuntu 20.04, and CentOS 7. Gnome desktop environment running on top of X11 windowing system.
• Processor: x64 architecture.
• Memory: 500 MB RAM.
• Graphics: OpenGL 3.2+, Vulkan capable. Nvidia using Nvidia official proprietary graphics driver or AMD GPUs using AMD Mesa graphics driver.
• Storage: 200 MB available space.

Contact me if you want a refund:

I had a similar problem, I solved it by setting the environment variable GDK_BACKEND=x11 and then running 1Bitdragon from the commandline.  I think this is a Wayland/something else problem, I've had this issue with other applications.