(2) Par38 Fixture 1 Light Working

I bought two Ring Par38 lightbulbs for my dual Par38 bulb Fixture to replace my dumb floodlights. One of the two will not turn on (left port). I figured it was a faulty bulb so switched the bulbs and it just seems to be that whichever one is plugged into the left port of my fixture will not work. I reinstalled the dumb bulbs and they both turn on. I then plugged in one Ring Par38 bulb, left a dumb Par38 in the left port, and the dumb bulbs and Ring Par38 work. I then tried switching the dumb bulb with a second dumb bulb and both of them work with the Ring Par38. I just can't get both of the Par38's to work when in left fixture's port... Electrical issue or known conflict when trying to use multiple Par38 bulbs in a dual bulb fixture? 🤦🏾‍♂️