So I resolved my issue by removing the config related to Memory Management in the .IOC file with an editor. In the file that was working fine with CubeMX 6.12.1 but produced the "Not a valid ioc file" error in 6.13.0, there was this section: MMTAppRe...

Unfortunately I can't share the IOC as it is confidential. Today I will try to manually reconfigure the MCU with cube 6.13.0 and afterwards compare the two files to see if I find some clues and what is corrupting the files.

Today I ran into the same issue with an STM32H563. A STM32G4 MCU works without issues, I tried several times to reinstall cube.When starting an empty project with the STM32H563, saving and loading works. I tried comparing the content of this clean, w...

I found a possible workaround for me by taking the STM32_Prog_DB_0x469.xml file, which contains the STM32G47x/G48x infos, from my CubeProgrammer v2.17.0 instalation directory (I attached it), path: "C:\Program Files\STMicroelectronics\STM32Cube\STM32...