I want to have the 4 ADCs of STM32F303VCT being triggered on the update event of timmer 8. When they complete they should generate an interupt.

[nVan.0]

All ADCs are in regular mode and only 1 channel is used per ADC. 

I can get ADCs 1,2 and 3 to work, but when ADC 4 is added it never generates an interupt. 

If I only start ADCs 3 and 4 it works fine. 

Everything is generated with CubeMX (find attached file-Test_adc). 

The main file is also uploaded (main)