What is the nature of the original video file (you can use Mediainfo app to get useful information) ?
You may try to use Avidemux to encode a video, maybe it works better than hybrid app. I haven't tried to convert to x265 using Avidemux myself, but it should be worth a try.
General
ID : 1 (0x1)
Complete name : E:\4k video downloads\New folder\Ariana Grande - Focus (Ripped by DETOX from Master ProRes, PCM24).m2ts
Format : BDAV
Format/Info : Blu-ray Video
File size : 1.35 GiB
Duration : 3 min 46 s
Overall bit rate mode : Variable
Overall bit rate : 51.1 Mb/s
Maximum Overall bit rate : 35.5 Mb/s
Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings : CABAC / 3 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 3 frames
Codec ID : 27
Duration : 3 min 46 s
Bit rate mode : Variable
Bit rate : 46.8 Mb/s
Maximum bit rate : 15.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.941
Stream size : 1.23 GiB (92%)
Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : PCM
Format settings : Big / Signed
Muxing mode : Blu-ray
Codec ID : 128
Duration : 3 min 46 s
Bit rate mode : Constant
Bit rate : 2 304 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Bit depth : 24 bits
Delay relative to video : -1 ms
Stream size : 62.1 MiB (5%)
i will try avidemux. thanks