async placeMembers() {
    if ( !game.user.isGM || !canvas.scene ) return;
    const members = await this.getPlaceableMembers();
    if ( !members.some(m => m.quantity.value) ) return; //breaks here
    const minimized = !this.parent.sheet.minimized;
    await this.parent.sheet.minimize();
    const tokensData = [];
//...

group.mjs:68 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'value')
[Detected 1 package: system:dnd5e(5.2.0)]
    at group.mjs:68:40
    at Array.some (<anonymous>)
    at GroupData.placeMembers (group.mjs:68:19)