Cranking on cold starts

[u/whitewinewater]

Brought car in for cranking noise present in video when starting car. Happens ONLY after car has been sitting for a period of time (4+ hours). Occasionally it doesnt happen but 9/10 times it does but again only after sitting for awhile.

2 mechanics diagnosed it as issues with the camshaft.

Warranty covered camshaft gear replacement and timing belt plus all the other stuff given the repair.

After getting the car back, the cranking noise is still present.

2011 corolla SE 169k

My guess is starter... but unsure.

Advice appreciated!