Broken runtime error highlilghting

[SpanishPear]

    .text
main:
    li      $t0, 42
    li      $t0, 42

    li      $t0, 42

    li      $t0, 42

    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42
    li      $t0, 42

    li      $t1, 0

    div     $t2, $t0, $t1

    li      $v0, 0
    jr      $ra

Mipsy web seems to not be highlighting the div by 0 line (I thinjk this is a regression), and showing an empty "tip: " when there is no tips (UX bug)