Did the BSP for the STM32L476G Discovery kit Board change? The new toolchain has broken all of our projects.

We teach using the STM32L476G Discovery kit Board. We have been using STMCubeMX 5.6.0 and Libraries 15.1. We want to migrate to current versions (6.5.0 and 17.2) but all of out programs that use the stm32l476g_discovery_glass_lcd.c library fail. We can use the new version of STMCubeMX fine if we do not migrate the project. We have also tried writing the same simple program from scratch using the old tools and the new ones. The old tools work fine, the new ones fail.

Any known bugs? Any idea where to look next?