Temporary Environment Variables Between Macros

[Davider]

The environment variable settings in the following two macro codes interfere with each other.
For example, after macro M_A is executed, macro M_B outputs the value set by M_A.
(I have to restart QM to ensure that a single macro executes correctly.)

Because I frequently use temporary environment variables, I have encountered some strange issues before, which I believe might be related to this problem.

How can this be avoided? Thanks for Any suggestions or help

Macro M_A
 

Code:

Copy      Help

SetEnvVar "Path" "hello"
GetEnvVar "Path" _s
out _s

Macro M_B

Code:

Copy      Help

GetEnvVar "Path" _s
out _s