His situation worsened to such an extent, that in 1774, when he applied for the newly-vacant office of a leading professor at the Academy, where he had been teaching since 1769, instead of getting it he was expelled from teaching.
Neskôr sa jeho stav zhoršil natoľko, že v roku 1774, keď opätovne žiadal o funkciu vedúceho profesora na Akadémii, kde vyučoval od roku 1769, bol vylúčený z výučby.