my lava farm no longer works.

The lava is still dripping through the drip stones but the cauldrons are not filling up at all.  I have been in my base and close to the lava farm for 14 minecraft days and nights and still the 3 that I used the lava from (filled before the update) just will not refill.

I have broken and reseated the cauldrons and have broken and reseated the drip stones to see if that would kick it into working but alas not.

I am on a windows 10 PC and the latest update 1.18.31 Bedrock Edition