Excel 365 - Conditional formatting - borders - problem

Occasional Visitor
Hello, in the file below I have a table where I change the number in cell A3, according to which it is conditionally formatted (already several years) table - border, font color. Suddenly it happened to me that the formula that determines the formatting is calculated, but suddenly the boundary returns to its original state - just scroll - and the border returns (font color not). For me, completely incomprehensible, when the online version is OK. Unfortunately, the desktop version 365 does not. If you look at it, I'll be glad, thank you very much. HERE IS THE FILE