The very first passenger flight of the A320 was said to have been brought down by a software issue* and was effectively grounded by its launch being delayed. It isn't exactly the same situation, but its close enough to draw some parallels.

https://en.wikipedia.org/wiki/Air_France_Flight_296

* - official reports blamed the pilot, but the pilot blamed the new software in the plane. Airbus was also accused of tampering with evidence to blame the pilot. These are also some parallels to Boeing's involvement in the initial MAX crash...