Glass / Transparent Problems

I have used the same material for both these round objects, but the more cylindrical one, pictured on the bottom, has strange reflections that don’t look right. There are no overlaping faces/vertices, all normals are pointing outward. I can not share this file, but is there anything obvious that I am missing here?

I found another thread about this issue, posted around the same time as mine. I will move other there.