for a small no of files in my library, these functions do nothing and return v quickly. The corresponding items are playable. The logs suggest the task does execute, for exmaple
0000059: 3408: CD: BDROM::Scan: Start
0000059: 3408: CD: BDROM::Scan: Scanning stream clip files...
0000062: 3408: CD: BDROM::Scan: Scanning stream files...
0000062: 3408: CD: BDROM::Scan: Scanning playlist files...
0000063: 3408: CD: BDROM::Scan: Finish (4 ms)
0000063: 3408: CD: JRBlurayHelper::SetFilename: Completed BDROM scan
0000063: 3408: CD: JRBlurayHelper::SetFilename: Found 4 playlists and did the sorting.
0000064: 3408: CD: JRBlurayHelper::SetFilename: Finish (52 ms)
0000070: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [mpegts @ 000002B3A2BF58C0] parser not found for codec pcm_bluray, packets or times may be invalid.
0000070: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [mpegts @ 000002B3A2BF58C0] parser not found for codec pcm_bluray, packets or times may be invalid.
0000070: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [mpegts @ 000002B3A2BF58C0] parser not found for codec pcm_bluray, packets or times may be invalid.
0000070: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [h264 @ 000002B3A2BF7680] Reinit context to 1920x1088, pix_fmt: yuv420p
0000073: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [mpegts @ 000002B3A2BF58C0] parser not found for codec pcm_bluray, packets or times may be invalid.
0000074: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [mpegts @ 000002B3A2BF58C0] parser not found for codec pcm_bluray, packets or times may be invalid.
0000074: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [mpegts @ 000002B3A2BF58C0] parser not found for codec pcm_bluray, packets or times may be invalid.
17527660: 9836: General: CReferenceCountedSocket::Close: SOCKET_DEBUG: closesocket() closing 3688
17527660: 9836: General: CReferenceCountedSocket::Close: SOCKET_DEBUG: closesocket() closing 4232
0000081: 6356: Encoders: CJRVideoAnalyzeExtended::AVLog: [h264 @ 000002B3A32E0B00] Reinit context to 1920x1088, pix_fmt: yuv420p
0000110: 3408: Encoders: CJRVideoAnalyzeExtended::AVLog: [AVIOContext @ 000002B3A2BF5DC0] Statistics: 1208464 bytes read, 2 seeks
0000110: 3408: General: JRWorker::ProcessCommand: AnalyzeVideoBlackBars succeeded...
0000113: 3408: General: JRWorker::ProcessCommand: Task completed in 102 ms, result = 0
0000114: 3408: General: JRWorker::ProcessCommand: Finish (105 ms)
in this case, Video Crop remains empty after execution.