I just solved a problem very similar to this. It was caused by the spring 2019 Debian upgrade. To solve it, I added "oldstable" to my Debian sources.list and then I was able to downgrade several packages. I downgraded:
I just solved a problem very similar to this. It was caused by the spring 2019 Debian upgrade. To solve it, I added "oldstable" to my Debian sources.list and then I was able to downgrade several packages. I downgraded: