"I chose bulbs that seemed to be supported by these dimmers."

That bulb is not listed on the compatible bulbs chart for MACL dimmers at www.lutron.com/macl

"Sometimes when it is off and I click to turn it on the lights flick on and immediately off again. Then when I click again they come on correctly."

You need to follow the instructions in Step 8 of the Installation Instructions to make sure that the dimming range is not set so low that the bulbs do not fire when switched on.

I have found the Lutron LED+ dimmers to be extraordinarily compatible. I did have to replace a Maestro with a Diva because the LEDs drew so little power that they would not turn off completely without the physical switch.

You need to study the specs carefully. I’ve encountered compatibility issues occasionally. Ask the company for tech help if you need it.

wdccruise, good point about dimming range. I hadn't done that, but now have. These bulbs were stable at the lowest level.

Regarding bulb choice: for my setup I need PAR30 short neck bulbs. I've been wanting to change to LED for a long time, but until recently I couldn't find any suitable bulbs available. Using the Lutron compatibility tool I now find only GE bulbs listed that will work for me. Those aren't available on the big online bulb suppliers. It does look like they should be available in the big box stores. (Though I haven't found them when looking in the past.)

I'm thinking that because the same bulbs are working fine in another circuit they ought to work in this one too. I'd rather not have to spend $60 on new bulbs for this circuit if the bulbs aren't the problem. So I'm wondering what else might be wrong.

I thought of contacting Lutron support, but are they going to tell me anything other than to use bulbs on their compatibility list?

I've had good luck with Euri PAR bulbs. The Euri EP30-11W6000es is compatible with the Lutron MACL-153M according to the spec sheet linked to the web page.

Try working in the opposite order. Check Satco's website for compatible dimmers. Way cheaper to switch the dimmer again than to switch out the bulbs.

@mcarroll16: "Check Satco's website for compatible dimmers."

The bulb appears to be the Satco S29416 and the Lutron MACL-153M appears on its compatible dimmers list.

We just installed a whole house of Maestro Pro LED+ Dimmers and we had buzzing as well. I tried some Euri bulbs A-19 bulbs (EL-EA19-5W5041cec-2) because I was searching for 4000k bulbs. I ended up having to return them and get Philips bulbs that the Lutron website approved. The Philips don’t buzz. I also have to swap out two LED fixtures because they refused to work with any dimmer our electrician tried. I’m finding while LED tech has been around awhile it still has much to be desired about compatibility.

I have read if lower voltage fans or lights are blinking (which the original post is not about it) could be the need of a switch that has a neutral wire installed. Best of luck.

wdccruise, thank you for checking. Yes indeed the bulbs I am using are S29416. Where did you find them in a compatibility chart? The only chart I could find stopped before S10000. And same for a tool I found.