swedish ivy

Question

don’t see any evidence of bugs but the leaves are being what seems to be skeleton – ized (clear holes seem to be appearing

Answer 1

Skeletonized leaves are typically caused by chewing insects, like caterpillars, beetles, and beetle larvae:
http://landscapeipm.tamu.edu/what-is-ipm/ipm-concepts/damage-recognition/
https://www.gardeningknowhow.com/plant-problems/pests/insects/skeletonized-plant-leaves.htm

Swedish ivy is resistant to most pests, but keep an eye out for these types of insects.