Crash mapping pixel buffer 460.91.03 AWS Tesla

Crash mapping pixel buffer 460.91.03 AWS Tesla. Ubuntu 20.04.

Starting an AWS server instance. i420 encoding starts soon after.

I have seen over the last couple of days three or four SIGABRT crashes when calling

*y_buff = glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);

Consistent reproduction not possible. Any similar experience?