Can't break blocks on realms in creative mode

After the latest update 1.20.71, I am unable to properly break blocks on Realms in creative mode when the 'Delayed Block Breaking' touch setting is toggled off.

As soon as I break a block, it reappears without any breaking sound, similar to when facing a connection issue or lag. However, when I "tap-and-hold' the screen to break multiple blocks simultaneously, only the initial block mined reappears. So technically, I can still break blocks, but it is bugged.

This issue is not present in normal worlds or when 'Delayed Block Breaking' is toggled on.