CUE sheet import error - Failed to load segments (Cannot read property 'map' of null)

Hallo, when i import a CUE file i get the error "Failed to load segments (Cannot read property 'map' of null)". 'YouTube chapter marks' work fine so file format (WebM/Opus) seems ok.

CUE file works properly in Winamp.

Any idea what's wrong?

Arch Linux 5.13.10 LosslessCut v3.37.0

Console Error:

main.8a3a7c71.chunk.js:1 EDL load failed TypeError: Cannot read property 'map' of null
    at main.8a3a7c71.chunk.js:1
    at main.8a3a7c71.chunk.js:1
    at main.8a3a7c71.chunk.js:1
    at EventEmitter.r (main.8a3a7c71.chunk.js:1)
(anonymous) @ main.8a3a7c71.chunk.js:1
async function (async)
(anonymous) @ main.8a3a7c71.chunk.js:1
r @ main.8a3a7c71.chunk.js:1
async function (async)
r @ main.8a3a7c71.chunk.js:1
emit @ events.js:223
onMessage @ electron/js2c/renderer_init.js:115

Audio file (WebM/Opus):

youtube-dl -f 251 https://www.youtube.com/watch?v=P0Kngtcth4U

CUE sheet (works properly in Winamp):

TITLE "Group_Therapy_446_with_Above_Beyond_and_Maxinne-131kbit"
FILE "Group_Therapy_446_with_Above_Beyond_and_Maxinne-131kbit.webm" WEBM
  TRACK 01 AUDIO
    PERFORMER "ABGT"
    TITLE "Intro"
    INDEX 02 00:00:00
  TRACK 02 AUDIO
    PERFORMER "StanV"
    TITLE "Lighthouse (Enhanced Progressive)"
    INDEX 02 00:31:00
  TRACK 03 AUDIO
    PERFORMER "Energy 52"
    TITLE "Cafe del Mar [Paul van Dyk XOXO Remix] (Superstition Records)"
    INDEX 02 04:15:00
  TRACK 04 AUDIO
    PERFORMER "gardenstate & Bien"
    TITLE "The Best Part [gardenstate Outer Space Mix] (Anjunabeats)"
    INDEX 02 08:38:00
  TRACK 05 AUDIO
    PERFORMER "RECORD OF THE WEEK: Above & Beyond feat. Zoe Johnston"
    TITLE "Love Is Not Enough [Newman (I Love) Remix] (Anjunabeats)"
    INDEX 02 14:05:00
  TRACK 06 AUDIO
    PERFORMER "Matt Lange"
    TITLE "Rift [Alex O'Rion Remix] (Anjunabeats)"
    INDEX 02 20:36:00
  TRACK 07 AUDIO
    PERFORMER "Matt Fax & Estiva"
    TITLE "Found (Colorize)"
    INDEX 02 27:02:00
  TRACK 08 AUDIO
    PERFORMER "BetweenUs"
    TITLE "All I See (Songspire)"
    INDEX 02 31:26:00
  TRACK 09 AUDIO
    PERFORMER "Purple Haze"
    TITLE "Rosy [Lunar Plane's Vox Mix] (Anjunabeats)"
    INDEX 02 36:36:00
  TRACK 10 AUDIO
    PERFORMER "Cosmic Gate & Diana Miro"
    TITLE "Nothing To Hide (Wake Your Mind)"
    INDEX 02 41:42:00
  TRACK 11 AUDIO
    PERFORMER "Tagavaka"
    TITLE "You Could Be The One (Anjunadeep)"
    INDEX 02 46:59:00
  TRACK 12 AUDIO
    PERFORMER "Tinlicker & Dosem"
    TITLE "I Can Feel (Anjunadeep)"
    INDEX 02 51:03:00
  TRACK 13 AUDIO
    PERFORMER "Dezza"
    TITLE "Real Love [Boxer Extended Remix] (Colorize)"
    INDEX 02 55:11:00
  TRACK 14 AUDIO
    PERFORMER "PUSH THE BUTTON: Ben Böhmer feat. JONAH"
    TITLE "Escalate (Anjunadeep)"
    INDEX 02 58:51:00
  TRACK 15 AUDIO
    PERFORMER "DT8 Project"
    TITLE "Forever (Enhanced Progressive)"
    INDEX 02 62:43:00
  TRACK 16 AUDIO
    PERFORMER "Kyau & Albert"
    TITLE "Spüren (Euphonic)"
    INDEX 02 67:16:00
  TRACK 17 AUDIO
    PERFORMER "Jeff Ozmits & Sinner Saints"
    TITLE "Savior (FSOE Progressive)"
    INDEX 02 71:50:00
  TRACK 18 AUDIO
    PERFORMER "Gary Afterlife"
    TITLE "Wavering Light (Pure Progressive)"
    INDEX 02 77:25:00
  TRACK 19 AUDIO
    PERFORMER "Jay Hayton"
    TITLE "All I Can See (Enhanced Progressive)"
    INDEX 02 82:30:00
  TRACK 20 AUDIO
    PERFORMER "FLASHBACK: Ronski Speed & Syntrobic feat. Renee Stahl"
    TITLE "Pink Skye (Anjunabeats)"
    INDEX 02 86:10:00
  TRACK 21 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: Maxinne & Lauren L'aimant"
    TITLE "Take It Anymore (Toolroom)"
    INDEX 02 90:30:00
  TRACK 22 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: The Mekanism, Sad Money"
    TITLE "Julio's Maham [Jesse Maas Remix] (Do Not Sleep)"
    INDEX 02 95:46:00
  TRACK 23 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: Nico Balducci & Medusa"
    TITLE "Hide & Seek (Circus Recordings)"
    INDEX 02 99:39:00
  TRACK 24 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: Maxinne & Hayla"
    TITLE "See Right Before My Eyes (Toolroom)"
    INDEX 02 104:17:00
  TRACK 25 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: James Organ"
    TITLE "Decoy (Circus Recordings)"
    INDEX 02 107:39:00
  TRACK 26 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: Maxinne & Lauren L'aimant"
    TITLE "Tell Me Something"
    INDEX 02 111:15:00
  TRACK 27 AUDIO
    PERFORMER "GUEST MIX: MAXINNE: Matthias Tanzmann, Black Circle"
    TITLE "Masina (Moon Harbour Recordings)"
    INDEX 02 114:52:00

mifi / lossless-cut

CUE sheet import error - Failed to load segments (Cannot read property 'map' of null) #813