Quick answer
Check the item order, try dragging the acid into the target, then reload the scene if the interaction is frozen. The acid issue is a community-reported interaction problem, not a confirmed universal bug.
Focused answer
What to do
- 01Confirm the laboratory checkpoint.
Make sure the cabinet is open and the correct ingredient container is selected.
- 02Use drag instead of tap.
Drag the acid directly onto the intended glass or target. Several players report that tapping does not always trigger this interaction.
- 03Restart without overwriting.
If the acid still does nothing, leave and reopen the scene. Capture the build and platform before reporting the issue.
FAQ
Common questions
Why is the acid not working?
Confirm the laboratory item order, drag the acid into the target instead of tapping, and reload the scene if the interaction remains frozen.