Are there any cross-staff notes in the piano part, with a clef change in the middle of an “empty” measure?

A mid-measure clef change in an “empty” measure needs hidden rests in the “empty” measure/staff, to “lock” the clef position in the measure/staff - even if the displayed cross-staff notes are entered in the other staff, and are “cross-staffed”.

Example:

4/4 time, clef change between beat 2 and beat 3 in the “empty” measure/staff.

Enter in the “empty” measure/staff two half rests, and hide the rests.