No BER this year, no splitting, no 'rings' - so they have to find something else to keep me amused!
Some years back, I had something similar in container grown toms.
Apparently, it was caused by watering with liquid fertiliser when the soil was too dry.
Quite likely!!
Whats that called then? They look like stuffed Tomatoes.
Can't think of a polite name. But they got stuffed alright!!