Thank you @Geir_Skalvik,
Are you Using Rboy’s custom DTH?
They’re talking about this issue here: [RELEASE] Heatit Z-TRM2fx / Z-TRM3 Electronic Thermostat Device Handler (Official) - #99 by Banisaad
You may also read The End of Groovy Has Arrived
So, @nayelyz, the following devices experience the bug (heatingsetpoint info and control buttons missing on the device screen) but are able to have there heatingsetpoint changed via a scene:
*TH1300ZB Sinope Thermostat
*TH1123ZB-TH1124ZB Sinope Thermosta
*Stelpro Maestro Thermostat
*Heatit Electronic Thermostat” (Heatit Z-TRM3)
(Sinope and Stelpro thermostats are not using custom DTH and use the default device type provided by Smartthings)