Technology is already creating hiccups in the primaries.

The problems aren’t expected to affect accuracy, and there weren’t concerns about security. The Democrats first used a phone app to submit results in 2016.
This is a small problem in the long run. Most concerns about technology in the 2020 election revolve around more serious issues like voting system security and attempts to manipulate social media users. It’s setting a not-so-positive tone for the election, though, and it won’t be surprising if technical snafus pop up elsewhere on the road to the final vote on November 3rd.