I assume it was the cable. Was talking to another fisher the same day and they mentioned they hit a "cable" in that area years ago, and surely due to the water levels, not ideal now. I was even using the autochart live share data for this side of the lake as well as navionics (yeah I know, out of date, but gives an idea what the lake structure was at one point) and there was no indication of any concern!
Anyways, I made a screenshot for reference for you. I put it on my NAS so others can view. Link is below:
https://meindernas.myqnapcloud.com:6...eee3ef46b0ca30
Password is: lacst3ann3
Hope that helps!