Factorio Forums

Environment:
Game version: 2.0.15 (build 80108, linux64, steam)
OS version: Ubuntu 20.04.6 LTS x86_64 Xorg
Hardware: AMD Ryzen 7 5700G with Radeon Graphics, 32GB RAM

Description:
alt-clicking on items on research menu, the first time Factoriopedia opens and show that item. If now alt-click another item in the research menu (with Factoriopedia already opened), the entity or tile below the tech menu is show in Factoriopedia, instead of the item in the research menu.

Steps to reproduce:
1. press T to open research menu
2. select any research
3. alt-click on any item(a) unlocked by the research
4. keep Factoriopedia page opened, alt-click another item(b) on the research menu below the Factoriopedia page

Expected behavior:
on step 3, Factoriopedia page opened and shows page about (a)
on step 4, Factoriopedia changed to page about (b)

Observed behavior:
on step 3, Factoriopedia page opened and shows page about (a)
on step 4, Factoriopedia page changed to page about the entity or tile as if research menu were closed and alt-click on same cursor coords in the world.

Attached game log and screen recording.

Tried with different tech and stand at different location when opening research menu, the wrong item(b) page seems not the cursor coords on the surface, it is likely to be the entity "behind" the first item(a), aka the entity on the surface which is covered by the icon of item(a) in the research menu.
The research menu is fullscreen and covers or blurs the background world, so not sure about which entity at what coords on the surface is selected.

Thanks for the report, this is a duplicate of 116796.