Whenever i change certain period fields on a task, i get an error message "Can't have negative period field". I can change the value to a bigger value, but cannot change to a smaller value.
I'll add a screenshot from Chrome developer tools:
What could be wrong? We have 15K+ tasks, and first it happened only for 3-4 tasks, and now it happens for more tasks.
We have a standalone installation.
Thanks in advance,