What phone do you have? Pixel 2XL and original Pixel
What plan are you on? 3.0
Does your plan include data, or just talk & text? Data, talk, text
A while back I switched from Textra to RA on both my wife’s original Pixel XL and my new Pixel 2XL. Randomly RA will not alert when a text is received. This happens on both phones. Both phones have been rebooted. My wife is using the standard “Chime” alert while I am using a downloaded “Samsung whistle” alert. Note that this happened with my Nexus 6P as well. I just switched to a brand new Pixel 2 XL and hoped the problem would go away, but it exists on the Pixel 2 XL as well. I haven’t tried clearing caches, etc., because the Pixel 2 XL is brand new so shouldn’t need anything cleared.
Is this a known RA issue? I’d say that it occurs on probably 10%-25% of the texts that we receive. It doesn’t seem to make any difference whether they are SMS or MMS messages. And doesn’t seem to make a difference whether we are on WiFi or cellular. My wife’s Pixel is on GSM and my Pixel 2 is on CDMA.