When I use ffmpeg downloader for amateur.tv some downloads (at least half) doesn't finish until I stop them. It's like ffmpeg doesn't detect the stream has ended.
If I try to download from the same site with hlsd this problem doesn't appear.
I would prefer download use ffmpeg because I've checked it uses less cpu than hlsd.
Debug logs are attached containing some examples with this behaviour:
nuriataoMilf - 20200522 082310.ts danielaX12 - 20200522 092907.ts pickys - 20200522 111326.ts Yil - 20200522 120315.ts
You could try a different ffmpeg version from the one we distribute - https://www.ffmpeg.org/download.html.
Just replace the ffmpeg.exe in the JMR install folder with what ever you download.
Good idea CRS!