Jan 29 (Reuters) - Redbubble Ltd (RBL) : RB GROUP OPERATING EBITDA OF $5.6 MILLION AND FREE CASH FLOW OF $25.6 MILLION FOR 1H FY2019, ON TRACK FOR POSITIVE RESULT ON BOTH MEASURES FOR FY Source text (http//reut.rs/2UpPJOk) (([email protected];))