BD Rebuilder: Video encoding fails always

[candyman_09]

Hi,
trying to encode BDs using latest build of BD Rebuilder (0.61.25) and also older builds at the moment ALWAYS failed...(??), no matter what the BD is. (running of course in administrator mode, Windows 10 V2004 Build 19041.546)

Here is one log (of several identical logs):

- Input BD size: 25,81 GB
- Approximate total content: [01:19:58.770]
- Target BD size: 22,95 GB
- Windows Version: 6.2 [9200]
- Quality: High Quality (Default), Two Pass
- Decoding/Frame serving: DirectShow
- Audio Settings: AC3=0 DTS=0 HD=1 Kbs=640
[08:27:10] PHASE ONE, Encoding
- [08:27:10] Processing: VID_00000 (1 of 2)
- [08:27:10] Extracting A/V streams [VID_00000]
- [08:31:22] Reencoding video [VID_00000]
- Source Video: MPEG-4 (AVC), 1920x1080
- Rate/Length: 24,000fps, 111.094 frames
- Bitrate: 23.998 Kbs
- [08:31:22] Reencoding: VID_00000, Pass 1 of 2
- Encode failed. Aborting.
- BD-Rebuilder v0.61.25
- Windows Version: 6.2 [9200]
- Working Path Free Space: 957,46GB
- AVISYNTH Version: 2.6.0.1, Ok
- HAALI Splitter: 1.9.42.1, Ok
- FFDSHOW: 3133, Ok
- FFDSHOW VC-1 set to "wmv9", Ok
- FFDSHOW MPEG2 set to "libavcodec": Ok
- FFDSHOW AVC set to "libavcodec": Ok
- AnyDVD settings check: Ok.
- X264: Ok
- X265: Ok
- AFTEN: Ok
- FAAC: Ok
- MP4BOX: Ok
- WAVI: Ok
- TSMUXER: Ok
- FRIMEncode: Ok
- FRIMDecode: Ok
[08:31:24] - Failed video encode, aborted

Any idea...? Help would be much appreciated....
Thanks