(Bloomberg) SoftBank Group Corp.’s Masayoshi Son, whose record on tech investing took a drubbing after flameouts like WeWork and DoorDash Inc. fueled a record $32 billion loss at its Vision Fund arm in the last fiscal year, was determined to turn the tide.Most Read from BloombergCaesars Entertainment Paid Millions to Hackers in AttackVideo-Game Company Unity Closes Offices Following Death ThreatByron Allen Makes $10 Billion Bid for ABC, Other Disney NetworksWhen the Homeowners Association Com