It sounds incredibly frustrating to deal with Sweet Home 3D freezing up like that! I've had similar issues with other design software when large recovery files bog things down. It makes you wish there was an easier way to manage those temporary files or a built-in "safe mode" to open the program without loading previous sessions. Hopefully, you can find a workaround soon. For anyone else encountering software glitches, sometimes checking community forums like those on the Fnaf platform can offer quick solutions or alternative approaches you might not have considered.