Can't launch custom campaign

[Vesik]

Wondering if anyone has run into this problem?

I've created a custom campaign and loaded it through Quenching, but when I click on the mission it doesn't launch.

Spoiler

This custom campaign works in original WC3.

I've also been able to play other people's custom campaigns.

Can't find anyone else online with this problem and I've spent hours trying to fix it with no joy. Hoping somebody might be able to assist me?

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Edit 16/09/22: I've managed to solve the problem myself by re-saving all the constituent maps as .w3x instead of .w3m.

As this issue is now resolved, please could a mod close this thread? Thank you!