multilevel decomposition fails

@Mattijs

changed the description

mentioned in commit af9bd12e0cd5181ada2b2f31705d514ceefb3448

added ~15 label

closed via commit af9bd12e0cd5181ada2b2f31705d514ceefb3448

closed via commit 6355554d1aeed0f29236225e9012c221fcabdd57

closed via merge request !153 (merged)

mentioned in commit 39cc76ec96caf9e590930e6d74a6a815898600dc

mentioned in commit 6355554d1aeed0f29236225e9012c221fcabdd57

mentioned in commit 41ebef82

mentioned in commit c8da996a