Big. problem vith a conversion of a register meeting

[AnimalReiki]

there was a big problem with a conversion of a meeting that I recorded and split into two parts. It only converted the second and not the first. Double click doesn't work. I tried opening a new recording and copying the file that didn't convert, but it only shows me the second file that I didn't even upload. For me it is crucial to recover that file, And then I wonder how can this happen?