Could not find any instructions in ['int 0x80']

[escapemarius2]

pwntools giving me this error only for the 32 bit elf file for 64bit everything works fine:
Could not find any instructions in ['int 0x80']

i wrote a small vuln server in c and use some inline assembly to generate for gadgets for my own example:

asm volatile(
    "int $0x80\n\t"
    "ret"
    :
);

ROPgadget output:

0x08049311 : int 0x80
0x08049311 : int 0x80 ; ret

so the gadget is still there but works only in 64bit

[Arusekk]

Please give exact steps to reproduce this so that we can better understand your use.

1. What is the output of pwn version?
2. What is your script that throws the error?
3. What is the error exactly?

[RocketMaDev]

What about searching 'int'? Please upload some reproducible samples.