By the way, there are free programmes for Windows to format the card to FAT32.
I use e.g. AOMEI Partition Assistant Standard.

On the manufacturer's page
says 256 GB.
I have two of them in use, one for the cat feeder and one for the cat flap.
One 256 GB and one 128 GB card from Kingston canvas go.
The card must be FAT32 formatted.
The camera itself cannot format larger cards such as 32 GB to FAT32. It must therefore be formatted with the PC beforehand.

Yes, it supports microSD cards with a capacity of up to 256 GB. Micro SD cards with a capacity of 64 GB or more must be formatted with the device before use.

I had the same problem with my sd card.
Solved the problem by trying different sd cards