MultiBit 0.5.15 - "incorrect password" when password is correct

[nitzany]

I'm using a wallet multibit-20131212202141.wallet with private key file multibit-20131212202141.key.
When trying to send bitcoins i'm requested to enter the "Wallet password", and i receive a message:
"The wallet password is incorrect".

I executed:
openssl enc -d -p -aes-256-cbc -a -in multibit-20131212202141.key -out decoded.key -pass pass:<MY PASSWORD>

the commands exists with status 0.

For some reason which i don't understand the decoded.key is in a binary format:
"decoded.key" may be a binary file. See it anyway?

When i tried with a different private key decoded.key was created in a text format.

Does that say that although the openssl command finished successfully my password might be incorrect?

What should i do so i will have access to my coins?

Thanks.

[jonjonez]

Did you open the decoded file using any text editor? Try notepad++

[terry1328]

Hi, did u solve your problem?

[doge2021]

https://btc2doge.com/multibit-hd-wallet-seed-words-not-work/
there is bugs in old wallet. check the summary