FreeOrion

So this bug has been there for a long time. I havent found a thread for it, so lets gather some Ideas.

It occurs in production list and research list. It starts, when releasing mouse while dragging a project. It forces scrolling up or down. Changing screen, loading the game does not help. Dragging another project stops it.
I tried out spots to drag onto, but I see no pattern, except, that it sometimes starts due to re-ordering projects in a list. Clicking or scrolling while dragging does not create the bug.

Ideas: I think it can only happen, if you have a project list of longer than 1 screen. I need to try out, if the bug is reconstructable via saves. Do you know anything else to narrow it down?

I used to get that occasionally, but haven't for a long time. Are you running a current version of the game?

Are your video drivers up to date?

Edit:bullshit removed

EricF wrote:Are your video drivers up to date?

Unlikely to be relevant for a GUI behaviour issue. (More so relevant for GUI rendering problems)

I was able to reproduce this bug.
It doesn't happen until there are over 20 items in the queue.
Interestingly, if I resize the production queue to be much smaller I could cause this bug to appear with very few items in the queue. So it seems linked to the size of the queue window. Removing items from the queue until everything is in the same window makes the effect go away.

EricF wrote:I was able to reproduce this bug.
It doesn't happen until there are over 20 items in the queue.
Interestingly, if I resize the production queue to be much smaller I could cause this bug to appear with very few items in the queue. So it seems linked to the size of the queue window. Removing items from the queue until everything is in the same window makes the effect go away.

I was just able to reproduce it as well.

It appears to be happening when you grab an item and hover near the bottom of the list window so that it starts scrolling down, and then drop while it is still scrolling. It never gets the message to stop scrolling, so now if you try to scroll back up from the bottom, it just autoscrolls back down, until you do something else to change to list order.

I had a similar but opposite experience. I was dragging something up and it would auto scroll to the top.

EricF wrote:I had a similar but opposite experience. I was dragging something up and it would auto scroll to the top.

That's my normal experience.

For what it's worth one of the reasons I asked for and others implemented things like "add to top of queue" and "move to top/bottom of queue" in the right click menus was to massively reduce the incidence of this, a few fixes to the actual problem have been applied in the past to also reduce it but eliminating it completely appears harder.

How about "add to top of queue" for Research items?

defaultuser, if you Ctrl-double click in the research tree it adds that item and all of its dependencies to the top of the research queue.

UrshMost, I was able to duplicate the bug with your instructions. Could you create an issue for this on github?

LGM-Doyle wrote:defaultuser, if you Ctrl-double click in the research tree it adds that item and all of its dependencies to the top of the research queue.

I will give that a try.

CaptainTofu2, this problem should be fixed in the master branch.