The most common reason for "losing" multiple 1.01x bets in a row is to wager less than 100 sats meaning your winnings get rounded down to zero sats. If you look at your balances on your roll history you'll see that your balance didn't change after each roll.
Very important remark.
One should check field "WIN PROFIT" to see if it is >0. With small odds and small amount there is possibility that because of rounding you may bet several different amounts and have the same winning - in that case of course it makes sense to bet the smallest possible amount for a given win profit.