Q.Rhododendrons did not flower
Can you help me find out why my Rhododendrons did not flower? Two years ago my plants flowered, last year they did not. I was told due to harsh weather they may have been shocked. I was also told to remove dead buds. I now have a plant that has all new buds but they have not began to open at all while my azaleas have. I have read things about pruning them but not exactly sure how I should prune them.
I have attached some photos. Is there anything concerning in these photos alone? I have applied some Rhododendron fertilizer to get the pH down.

There could be a few reasons for lack of flowering including lack of sunlight or over fertilizing.
Here are some articles that will help you, including pruning information.
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-not-blooming.htm
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/pruning-rhododendrons.htm
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/fertilizing-rhododendrons.htm