I've added a new redundant check that will ensure all chunks are uploaded before marking the large upload as finished. Hopefully this resolves the issue you were facing. If not, please do send me an email at the address listed at https://horizon.pics/help.
As for those files that failed but still show up in the dashboard, it means they're stored incomplete, and as such, will be automatically purged in 24 hours. I will work on hiding them in the dashboard.
As for those files that failed but still show up in the dashboard, it means they're stored incomplete, and as such, will be automatically purged in 24 hours. I will work on hiding them in the dashboard.