After the release of 21.6, runways on the map look like the photo below (with straight white lines), however they had runway markers and threshold markers prior to the 21.6 release for at least 2 years as seen in the second photo, courtesy of @Ecoops123 . This was a wonderful feature that added to realism and helped with landings. I hope this can be fixed soon. 😔
Does this apply to everyone or is it just a bug for you ? 😅
According to @schyllberg , this was never a feature. I’m pretty sure it’s a widespread bug but there’s no way for me to know that for sure hence the reason I created this support topic as recommended by @schyllberg in the following link. Perhaps you can share if you have runway markers on your device. 😁 Infinite Flight 21.6 - #295 by schyllberg
Easy there. As i said, it was not as far as i could remember but was proven wrong in accordance to the screenshot @Ecoops123 was kind enough to provide 
Roger That.
Just thought I’d tag you guys just in case this topic closes before others see it 😊
There’s no need to tag us. Seb has already replied to you above - the issue won’t be forgotten that quickly.
Noted internally
