Can’t adjust block size

I download marginote 4 on a new device, and download studyset on iCloud, now the notes on pdfs are dim, and I can’t adjust the block!

Why you guys have to differentiate block from backup and block newly created? What’s the meaning of blocks that can’t be adjusted???

I shut down the app and reopen, it magically gets back to normal. Seems to be the notes on pdf are still syncing, you cloud’ve told me it’s still syncing.