[DEV-6709] Flush the "Waiting for model generation" message to output

[vincewhite]

Description

Because the "Waiting for model generation" message doesn't end with a newline it generally isn't flushed to the screen/output. This change forces it to be flushed.

Associated tasks

NA

Test Steps

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Checklist

If any of these are not applicable, strikethrough the line ~like this~. Do not delete it!. Let the reviewer decide if you should have done it.

Code

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Documentation

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Breaking Changes

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Don't see how it could be.

[AlexV-ZB]

LGTM!