Spring RTS Engine

I know that collision detection was revisited in the last release (98.0) and I was wondering if there are any devs that realize that it is still a bit broken.

It was previously logged a 97 bug: https://springrts.com/mantis/view.php?id=4465 and now marked as resolved. However it happens regularly (yet infrequently) in 98 games where the first unit produced by a factory is stuck in the lab, rendering the factory useless. If the unit is reclaimed, the following unit will also stick.

Another much more common collision detection flaw is that constructors will get caught on wind farms if ordered to construct a long queue of them. To reproduce this, you need only join one of the BA "green fields" map games or download any of the 98.0 replays for the BA/green fields games. You'll see that typically about 5-10% of a player's constructors eventually get stuck if ordered to queue a long chain of wind farms. Note that the error rate is probably only about 0.5% or so, but in big games where thousands of these structures are produced, it is inevitable that many constructors are caught.

I think the fix did not appear in 98.0 (contrary to what that ticket suggests), so testing latest dev is whats needed here.

What OP writes is true and also happens in other games than BA. I think factory stickiness happens less in latest dev, but I'm not sure if it's completely fixed. Yes, I guess we need to test more the dev builds.

What also happens is that the pathfinder orders units to go into 'red' territory, thus making them stuck.

I would not say these things happen infrequently, they happen in every games more or less, quite dependent on terrain of course.

In 98.0 there was https://springrts.com/mantis/view.php?id=4587 ("fixed")

In test version 99.0-RC3 it did not seem to happen anymore, but how thoroughly can one really test such things that happen randomly...
viewtopic.php?f=12&t=33035#p566247

What also happens is that the pathfinder orders units to go into 'red' territory, thus making them stuck.

That sounds more like allowGroundUnitGravity=true which generally is more fun to play with (units can jump etc) but sometimes they end up in bad places.