ask /r/bash on continue bug

#!/bin/bash
# Why doesn't the second method work?
CONFIG_IS="manual" ; TEST_0="0" ; TEST_1="0" ; TEST_2="0" ; TEST_3="1" ; TEST_4="1" ; TEST_5="1" ; TEST_6="0" ; TEST_7="1" ; echo "Values:"
echo -e "\$TEST_0=$TEST_0\n\$TEST_1=$TEST_1\n\$TEST_2=$TEST_2\n\$TEST_3=$TEST_3\n\$TEST_4=$TEST_4\n\$TEST_5=$TEST_5\n\$TEST_6=$TEST_6\n\$TEST_7=$TEST_7"
TEST_PROGRESS="0" ; ORIGINAL_LOOP="0" ; echo "THIS METHOD WORKS:"
while [ "$TEST_PROGRESS" -le 7 ] ; do
    echo "Looping $ORIGINAL_LOOP" ; SKIP_ROUND="0"
    if [[ "$CONFIG_IS" = "manual" ]] ; then
        case "$TEST_PROGRESS" in
        0 ) [ "$TEST_0" -eq 0 ] && SKIP_ROUND="1" ;;
        1 ) [ "$TEST_1" -eq 0 ] && SKIP_ROUND="1" ;;
        2 ) [ "$TEST_2" -eq 0 ] && SKIP_ROUND="1" ;;
        3 ) [ "$TEST_3" -eq 0 ] && SKIP_ROUND="1" ;;
        4 ) [ "$TEST_4" -eq 0 ] && SKIP_ROUND="1" ;;
        5 ) [ "$TEST_5" -eq 0 ] && SKIP_ROUND="1" ;;
        6 ) [ "$TEST_6" -eq 0 ] && SKIP_ROUND="1" ;;
        7 ) [ "$TEST_7" -eq 0 ] && SKIP_ROUND="1" ;;
        esac
        if [ "$SKIP_ROUND" -eq 1 ] ; then
            ((TEST_PROGRESS++))
            continue
        fi
    fi
    case "$TEST_PROGRESS" in
    0 | 1 | 2 | 3 ) TEST_TYPE="A" ;;
    4 | 5 | 6 | 7 ) TEST_TYPE="B" ;;
    esac
    TEST_TYPE="$TEST_PROGRESS-$TEST_TYPE"
    echo -e "\$TEST_PROGRESS is $TEST_PROGRESS (original: $ORIGINAL_LOOP)\n\$TEST_TYPE     is $TEST_TYPE"
    ((ORIGINAL_LOOP++)) ; ((TEST_PROGRESS++))
done
echo "Loop ended."
CONFIG_IS="manual" ; TEST_0="0" ; TEST_1="0" ; TEST_2="0" ; TEST_3="1" ; TEST_4="1" ; TEST_5="1" ; TEST_6="0" ; TEST_7="1" ; echo "Values:"
echo -e "\$TEST_0=$TEST_0\n\$TEST_1=$TEST_1\n\$TEST_2=$TEST_2\n\$TEST_3=$TEST_3\n\$TEST_4=$TEST_4\n\$TEST_5=$TEST_5\n\$TEST_6=$TEST_6\n\$TEST_7=$TEST_7"
TEST_PROGRESS="0" ; ORIGINAL_LOOP="0" ; echo "THIS METHOD DOES NOT WORK:"
while [ "$TEST_PROGRESS" -le 7 ] ; do
    echo "Looping $ORIGINAL_LOOP"
    if [[ "$CONFIG_IS" = "manual" ]] ; then
        case "$TEST_PROGRESS" in
        0 ) [ "$TEST_0" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;; # count increment is performed but not continue..?
        1 ) [ "$TEST_1" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;; # I also tried: if [ ...] ; then ((T++)) && continue ; fi ;;
        2 ) [ "$TEST_2" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;;
        3 ) [ "$TEST_3" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;;
        4 ) [ "$TEST_4" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;;
        5 ) [ "$TEST_5" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;;
        6 ) [ "$TEST_6" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;;
        7 ) [ "$TEST_7" -eq 0 ] && (( TEST_PROGRESS++ )) && continue ;;
        esac
    fi
    case "$TEST_PROGRESS" in
    0 | 1 | 2 | 3 ) TEST_TYPE="A" ;;
    4 | 5 | 6 | 7 ) TEST_TYPE="B" ;;
    esac
    TEST_TYPE="$TEST_PROGRESS-$TEST_TYPE"
    echo -e "\$TEST_PROGRESS is $TEST_PROGRESS (original: $ORIGINAL_LOOP)\n\$TEST_TYPE     is $TEST_TYPE"
    ((ORIGINAL_LOOP++)) ; ((TEST_PROGRESS++))
done
echo "Loop ended."
exit 0