Amazon Echo Skill - Temperature Sensors - Something Went Wrong

I've had my Hubitat devices set up to appear in the Amazon Alexa app for years using the Amazon Echo Skill, recently I noticed that just my temperature sensors are misbehaving.

If I open up the Alexa app, all of the temperature sensors show the current correct temperature, but when I tap on the sensor all I get is a card that says "Something Went Wrong".

They previously used to show me historic data and let me view the sensor information.

I've removed the sensors from Alexa, by removing them from the Amazon Echo Skill and readding them and letting the app rediscover them, but I always get the Something Went Wrong message when I tap on the sensor.

These are a mix of Sonoff SNZB-02P and SNZB-02, connected to the Hubitat.

Where do I start? I'm loathed to remove them from the Hubitat and re-add them as they work just fine with the Hubitat (and they're set up in webCoRe to log). All of my other devices (lights, plugs, locks) that I share to Alexa via the Amazon Echo Skill also work fine, I can tap on them in Alexa and view the extra info and control their properties.

I usually have problems with Alexa when they have done updates, I have several Echos and they update over several days and my problems last until all the updates are done