2nd pass won't start..."file size too small"

[Selur]

Seems like 2pass is broken or I'm really overlooking something.
Even using a simple settings I end up with the 'different scenecut setting than first pass (40 vs 40)'-error.

I:\Hybrid\64bit>ffmpeg -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "F:\TestClips&Co\files\test.avi" -map 0:0 -an -sn -vf zscale=rangein=tv:range=tv -pix_fmt yuv420p10le -strict -1 -vsync 0  -f yuv4mpegpipe - | x265 --preset medium --input - --output-depth 10 --y4m --profile main10 --pass 1 --slow-firstpass --bitrate 1500  --range limited --colormatrix bt470bg --stats "E:\Temp\test_19_40_50_2910_01.stats" --output "E:\Temp\test.265"
y4m  [info]: 640x352 fps 25/1 i420p10 sar 1:1 unknown frame count
raw  [info]: output file: E:\Temp\test.265
x265 [info]: HEVC encoder version 3.2+15-04db2bfee5d6
x265 [info]: build info [Windows][GCC 9.2.0][64 bit] 10bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main 10 profile, Level-2.1 (Main tier)
x265 [info]: Thread pool created using 16 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 4 / wpp(6 rows)
x265 [warning]: Source height < 720p; disabling lookahead-slices
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 3
x265 [info]: Keyframe min / max / scenecut / bias: 25 / 250 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt        : 20 / 4 / 2
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
x265 [info]: References / ref-limit  cu / depth  : 3 / off / on
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress            : ABR-1500 kbps / 0.60
x265 [info]: tools: rd=3 psy-rd=2.00 early-skip rskip signhide tmvp b-intra
x265 [info]: tools: strong-intra-smoothing deblock sao stats-write
x265 [info]: frame I:      3, Avg QP:13.44  kb/s: 3999.20
x265 [info]: frame P:    119, Avg QP:10.20  kb/s: 3036.26
x265 [info]: frame B:    307, Avg QP:14.84  kb/s: 782.98
x265 [info]: Weighted P-Frames: Y:0.8% UV:0.8%
x265 [info]: consecutive B-frames: 2.5% 0.0% 58.2% 22.1% 17.2%

encoded 429 frames in 10.47s (40.97 fps), 1430.51 kb/s, Avg QP:13.54

I:\Hybrid\64bit>ffmpeg -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "F:\TestClips&Co\files\test.avi" -map 0:0 -an -sn -vf zscale=rangein=tv:range=tv -pix_fmt yuv420p10le -strict -1 -vsync 0  -f yuv4mpegpipe - | x265 --preset medium --input - --output-depth 10 --y4m --profile main10 --pass 2 --bitrate 1500  --range limited --colormatrix bt470bg --stats "E:\Temp\test_19_40_50_2910_01.stats" --output "E:\Temp\19_40_50_2910_03.265"
y4m  [info]: 640x352 fps 25/1 i420p10 sar 1:1 unknown frame count
raw  [info]: output file: E:\Temp\19_40_50_2910_03.265
x265 [info]: HEVC encoder version 3.2+15-04db2bfee5d6
x265 [info]: build info [Windows][GCC 9.2.0][64 bit] 10bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main 10 profile, Level-2.1 (Main tier)
x265 [info]: Thread pool created using 16 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 4 / wpp(6 rows)
x265 [warning]: Source height < 720p; disabling lookahead-slices
x265 [error]: different scenecut setting than first pass (40 vs 40)
x265 [error]: failed to open encoder