ACF repeater field broken in 4.1.0

[BenTangible]

There may be more going on, but as far as I can see (and based on this forum user's issue), the ACF repeater field type is simply broken when updating to 4.1.0. I have the following content and template:

<ul>
  <Loop acf_repeater="repeater_field">
    <li><Field repeater_text /></li>
  </Loop>
</ul>

In 4.0.2 this outputs

• Content in the first row
• Second row of the repeater
• Third row

However after updating to 4.1.0, the repeater loop simply outputs nothing.

Edit: content around the Loop still renders, so to clarify, this template doesn't output "nothing", it renders an empty <ul> </ul>.