LibrePlan 1.6.0 has barely left the building and it already turns out that not everybody is having a flawless experience.
In some setups, two libraries appear to bite each other in unpleasant ways. Naturally, this surfaced only a few days after finally putting out the release and going on the first real vacation in three years.
That is open source reality sometimes.
The good news is that several people from the community quickly responded, pointed to the likely culprit and suggested possible fixes. Santiago then took all of that input, put it together into a proper pull request, and that PR has already been merged.
This is exactly why healthy open source communities matter. Problems are rarely solved by one person alone.
The proposed fix is now being tested. If everything holds up well, we will push LibrePlan 1.6.1 out the door very quickly.