This reminds me of something I recently saw on Netflix. In the documentary about physicist Abdus Salam, he sent Wolfgang Pauli a paper on parity violations. Pauli replied saying something like "find something better to do".
Later, two Chinese physicist went on to get the Nobel Prize for that same theory. Pauli later apologised.
Ericsson said last week that "an initial root cause analysis" had indicated that the "main issue was an expired certificate in the software versions installed with these customers".