Or it could be handled as a Spike. It's not perfect, but it captures the idea of uncertainty by having a time-boxed investigation, the end result of which is a

Or it could be handled as a Spike. It's not perfect, but it captures the idea of uncertainty by having a time-boxed investigation, the end result of which is an estimate of how long it will take to fix. https://www.leadingagile.com/2014/04/dont-estimate-spikes/ https://www.leadingagile.com/2014/04/dont-estimate-spikes/ https://www.scrumalliance.org/community/articles/2013/march/spikes-and-the-effort-to-grief-ratio https://www.scrumalliance.org/community/articles/2013/march/...