I don't know if my issue is related or not here. It seems like it should, but I also understand that local expression handling has changed within the last couple of builds. I don't know exactly when my issue started, nor what build I was on. My guess would be Sept 7th as my rule was last "SET" on that date.
I am running latest-25254-f6a45e41 in a docker on unRAID. The following rule has been in place for years and has been working pretty reliably, until recently.
The Set Reaction is just to turn on the shower exhaust fan. I collapsed it for screenshot space.
If I change the Local Expressions to: (and in this order)
MBath_HumityRise = "CurrentHumidity - MBath_prevHumidity"
MBath_prevHumidity = "CurrentHumidity"
CurrentHumidity = (some # value like 48)
And then manually change the CurrentHumidity value to 54 (something >=3), the rule triggers. The MBath_HumidityRise value changes to 6 too. Setting the CurrentHumidity to 50, changes the HimidityRise value to -4.
When I set these expressions back to pull from the device, I see the prevHumidity value change, but the HumidityRise value always stays 0. I set up global expression under different names and watched the values too. In the same order with the Rise expression above the Prev expression, I never see the Rise value change.
I will see if I have 25260 available for my docker update and test that, but for the life of me I cannot figure out why this rule stopped working.