The problem in the solution presented is that the C.F. sequence breaks off in beat 3, but the solution continues it into beat 4, leaving that voice unprepared for a new sequence in the second measure. (Also note that beat 4 has
F in the counterpoint against
Eb in the C.F., a no-no.)
In the counterpoint, on beat 3, rather than move from
G, break the sequence and move from
Eb downward. That will prepare the counterpoint for the measure 2 sequence.
Here is one simple solution:
T: Counterpoint 2/8
T: proposed solution to m. 1
K: Ab major
%%score V1 | V2
[V:V1] cedf edcB | A
[V:V2 clef=bass] A,2B,2C2E,2 | F,2
Note: The proposed solution is a transposition of a sequence appearing in Bach's Invention in C major (BWV 772).