I have a Sandisk Ultra 128gb card.  You suggest a FAT32 format but on their site they recommend exFAT but then they wrote:

FROM SANDISK...

Even if the camera recommends FAT32 and you have purchased 64GB & above capacity which is exFAT file format supported you may need to download a third-party software(HP Disk) to format in FAT32. However, a High Endurance card is mandatory.