Hello everyone,
I wrote https://forum.mayan-edms.com/t/search-not-working-anymore/ and switched my direct install from Mayan to docker (version image: 4.5s) over the weekend. I left the configuration largely untouched. And I have the same problem now as described here.
The following helped me out:
I reduced SEARCH_INDEXING_CHUNK_SIZE from default 25 to 5 and did
docker compose stop
docker compose start
The index is currently being built and it seems to keep running. As I already wrote in https://forum.mayan-edms.com/t/search-not-working-anymore/, I suspect that a large SEARCH_INDEXING_CHUNK_SIZE leads to strange problems during the initial setup of the index. SEARCH_INDEXING_CHUNK_SIZE can be increased again after the index is built.
I hope this helps 
BR, Joerg