multiple call of print in function failed

Question

I want to call two simple function(fun1 and fun2) consecutively, but it seems that only fun1 is executed. Do I need to save/load register before/after the call? (I'm working on windows 10 64bit)

result:

hello 1
hello 2
test 1

code:

segment .data
    hello1 db "hello 1", 0xd, 0xa, 0
    hello2 db "hello 2", 0xd, 0xa, 0
    test1 db "test 1", 0xd, 0xa, 0
    test2 db "test 2", 0xd, 0xa, 0

segment .text
global main
extern ExitProcess
extern printf

main:
    push    rbp
    mov     rbp, rsp
    sub     rsp, 32

    ; Call printf to print the main message
    lea     rcx, [hello1]
    call    printf

    lea     rcx, [hello2]
    call    printf

    call    fun1

    call    fun2

    ; Exit the program
    xor     rax, rax
    call    ExitProcess

; Define additional functions
section .text
fun1:
    lea     rcx, [test1]
    call    printf

    ret

fun2:
    lea     rcx, [test2]
    call    printf

    ret

command:

nasm -f win64 -g -o main.o main.s
link /LARGEADDRESSAWARE:NO main.o kernel32.lib kernel32legacylib.lib legacy_stdio_definitions.lib legacy_stdio_wide_specifiers.lib ucrt.lib /subsystem:console /entry:main /out:main.exe /DEBUG

Thanks so much for the help from the comments, now I'm learning to reserve space in the function/procedure and it works.

updated code:

segment .data
    hello1 db "hello 1", 0xd, 0xa, 0
    hello2 db "hello 2", 0xd, 0xa, 0
    test1 db "test 1", 0xd, 0xa, 0
    test2 db "test 2", 0xd, 0xa, 0

segment .text
global main
extern ExitProcess
extern printf

main:
    push    rbp
    mov     rbp, rsp
    sub     rsp, 32

    ; Call printf to print the main message
    lea     rcx, [hello1]
    call    printf

    lea     rcx, [hello2]
    call    printf

    call    fun1

    call    fun2

    ; Exit the program
    xor     rax, rax
    call    ExitProcess

; Define additional functions
section .text
fun1:
    sub     rsp, 32       ; Allocate
    lea     rcx, [test1]
    call    printf
    add     rsp, 32       ; Deallocate

    ret

fun2:
    sub     rsp, 32       ; Allocate
    lea     rcx, [test2]
    call    printf
    add     rsp, 32       ; Deallocate

    ret

result now:

hello 1
hello 2
test 1
test 2