When you try to place a row of tiles by holding the mouse and then scrolling, some tiles get skipped. This started happening with the introduction of the QoL Mk1 update (was there in the preview branch, but showed up in the forms after it went live). Here's the attached forum discussion.
Steps to Reproduce
Click to build a tile. Then hold down mouse and start using awd or arrow keys to move in a straight line. Several tiles will be skipped. See the forum post for several examples and pictures of the issue.
This issue has not been confirmed by a developer yet.