Empty results after upgrading


I’ve been using the YaCy version 1.924 running Robinson mode, and just downloaded 1.926 from https://release.yacy.net/. I copied the DATA folder from the older install to the new one. Any search returned 0 results (screenshot below).

Index browser showing there are 4,730 documents which is correct, and http://localhost:8090/ViewFile.html?viewMode=sentences&url=https%3A%2F%2Fwww.xxxxxxxx&show=Show+Metadata&search=x appears to have correct documents. I tried to restore from a previous dump, but the search results are still empty.

Both installs are unzipped from compiled tarballs, on MacOS Mojave (10.14.6).

Many thanks in advance for help on this.

Welcome to the family
I have had this happen when the version of solr is upgrade.
Can you restore or rebuild YACY on another machine?
There’s an upgrade path covered on this forum.
Look under import export

Is that maybe the same case as here? And this should be the solution, then.