We'll address the issue in the forthcoming v3.10.8.
A workaround for the current version:
<body dir="rtl">
<ul style="padding-right: 30px">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
<ol style="padding-right: 30px">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ol>
</body>
As the style impacts a rendering of the doc by the browsers, you may apply it only in PD4ML context:
@media pdf {
OL, UL { padding-right: 30px; }
}