hdr10plus_tool: Malloc error

First off, this is a fantastic script. Been doing some HDR10+ metadata retention with it. Thank you!

Now on to the issue at hand.

The script works well for most titles with HDR10+ metadata but then throws malloc errors on others. I’m not sure if anyone else is having the same experience.

I encode on a headless Ubuntu 18.04. This is the error that I just recently got:

x265 [info]: Main 10 profile, Level-5.1 (Main tier)
x265 [info]: Thread pool created using 8 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 3 / wpp(17 rows)
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  : 23 / 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  : 3 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress            : CRF-16.0 / 0.60
x265 [info]: VBV/HRD buffer / max-rate / init    : 36000 / 18000 / 0.900
x265 [info]: tools: rd=3 psy-rd=1.00 rdoq=1 psy-rdoq=3.00 early-skip
x265 [info]: tools: rskip mode=1 signhide tmvp b-intra strong-intra-smoothing
x265 [info]: tools: lslices=6 deblock(tC=-3:B=-3) dhdr10-info
ffmpeg: malloc.c:3830: _int_malloc: Assertion `chunk_main_arena (bck->bk)' failed.speed=0.367x