They are designed for a different purpose and may not disperse in the same way. The macerator's permitted-use instructions should be followed.
What the observation means
A small torn piece is not automatically safe, and a successful flush does not prove the material passed without accumulating.
A useful next step
Provide ordinary compatible toilet paper and a separate bin for other paper products. If the unit changes after unsuitable paper entered, stop further use and report the amount and timing. Do not repeatedly flush or try to cut material through the bowl outlet.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.