98% of MP4 Files >2GB are not stored locally

[Mozilla007]

Very, very frustrating. Example: Big video about 4GB 2160p file is downloading. The temp file in the main directory is growing. But when it reaches the end, the whole 4GB file is gone! No directory nor file is created in the project directory. The report status is "downloaded", but right click open download folder reports no local file available. The properties dialog tells error text "TimeSpan overflow, time too long". Internet is fast enough, but it takes time to download the big file. I can repeat it over and over again. Nothing is stored. Files about 2-2,5GB 1080p are downloaded. Alpha versions didn't work either. Many thanks for your support.