Aircraft’s are showing unknown with their callsigns, some of them cause crashes when you click on them
I was just seeing this too. Thank You for reporting it!
First occurred during Beta. Now it seems to happen much more often in the released version, especially when controlling as ATC (I first found it during Beta when I was flying).
I don’t use beta when controlling
Just had this issue as EFHK approach. Unable to see 75% of the aircraft on frequency. Forced to close as I was unable to guarantee separation.
Happens in both versions now though and I first saw it in beta before the full release
It’s been getting worse after this post. Pretty much everyone arriving and departing were invisible
Same here, just departed KDEN. From my perspective I was the only aircraft holding for 34L but kept hearing aircraft getting clearance for departure. Probably 4-5 aircraft were cleared prior to my clearance and I wasn’t able to see any of them.
Same here! GTS at KDEN.
It’s gotten worse over time. I have no real aircraft now.
People are getting impatient too!
Hi! I apologize about the mess at Denver. Im sure you can imagine the slight bit of difficulty rn. Especially with it being the hub for tmmr.
No worries! I think you still did great given the circumstances! Just departed KDEN with you as Southwest 2541.
Sent a Thank you!
I hope to control you again under better circumstances! 
Same with flying - no aircraft nearby on map or can be seen. Only name tags.
Also issue when switching freq. and disappearing for controller.
Thanks for the reports, folks. We’ve isolated the issue and are pushing a fix to the servers shortly.
Please keep reporting ATC issues on the forum, it really increases the chances of us finding and fixing bugs (they get lost in Discord sometimes). Thank you 
I have aircraft that cannot contact me
Ex. They taxi even after being sent warnings/unable to comply with on guards. This could be a seperate issue and im not realizing.
Another pilot i talked to said they cant see each other at all. Meaning they are taxiing through one another, and unable to comply with sequencing!
Hope i could help for now
With a username like that.. I don’t think they’d want the garlic breath 
Let’s keep an eye on it and open a separate topic if you see this happen multiple times. We have some users that cannot contact ATC and we’re going to deploy some server fixes later this week.
In case we didnt mention. We cant d&t or we crash lol
Ooh some airplanes just spawning in are normal!
This is a thing? Any specific airports causing this?
Can you try this on the Open Beta please and let me know if you see a crash with D&T; that will help me track down the crash. Thanks