When using a hou.frame() Python expression instead of the Hscript '$F' in the 'image file path' parameter, the python expression is evaluated as 1 for all frames and results in frames being overwritten on one another.
This problem does not occur in other ROP nodes like Mantra or Karma.
* Currently using:
Windows 11
Houdini 20.0.590
Octane 2024.1.2.0