I found the solution to the frequently reported problem of invoices not displaying on the Money > Invoices page. This often occurs when the package is updated from a legacy version of SI to ‘master_2019.2’ or similar.
The problem was resolved after I noticed the languages and locales of my statement, estimate and quote templates did not match the language and local (en_US in my case) of my invoice template in Settings > Inv Prefs:
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Once all these templates had the same location and locale settings, the invoices displayed just fine on the Money > Invoices page.
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