Can't sell a car

For some reason when i try to sell cars i bought during my time at the alternate garage, it always pops up "Sell Failed" when i try to sell them. Fix thus bug pls Ghost? 

Product: Need for Speed Heat
Platform:Microsoft XBOX One
Summarize your bug Hey EA, I couldn’t sell my BMW i8 Coupe in Need for speed heat for no release. When I click the button (SELL CAR), It says “Sell failed”. I was like What the heck is going on. I was wondering if you can fix this issues/bugs.
What car were you using? BMW i8 Coupe
Was the car your own build or downloaded from the in-game community? Personal Build
What was the last event you played? BOLT - CIRCUIT RACE
Was it a day or a night event? Night Event
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Go to Showcase, select the car and then click the button “SELL CAR”
What happens when the bug occurs? 2 weeks ago
What do you expect to see? I expect this car should be sold without issues

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1) Go to showcase from the garage

2) Find BMW i8

3) Select this car

4) Click the button “SELL CAR”

I did over 10+ times and still didn’t work at all.

@ADIDASY33SY Have you been able to sell other cars without issue? I take it that you have other cars in your garage? It's probably not a factor but can you toggle it so that just your garage shows?

Product: Need for Speed Heat
Platform:Sony Playstation 4
Summarize your bug Ok so I have a lamborghini huracan spyder, and i want to sell it because I have a perfomante edition which is obviously better and faster. So whenever i try to sell it, it says "ERROR... Sell Failed". I literally tried everything from removing all the body parts to making it stock performance wise, and it still won't sell. Hopefully you guys will look into this.
What car were you using? Lamborghini Huracan Spyder
Was the car your own build or downloaded from the in-game community? Personal Build
What was the last event you played? The race around the track.
Was it a day or a night event? Day Event
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Attempt to sell a car from your garage.
What happens when the bug occurs? An error message pops up and says sell failed.
What do you expect to see? My car sold and the money in my bank.

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Product: Need for Speed Heat
Platform:Sony Playstation 4
Summarize your bug stock visual parts show their prices and yet they cannot be slected or equipped. cars affected cannot be sold, error message "Sell Failed" pops up
What car were you using? 458 Spider, 2015 Mustang, Volvo 242, ND MX5
Was the car your own build or downloaded from the in-game community? Personal Build
What was the last event you played? Resorts Circuit
Was it a day or a night event? Day Event
How often does the bug occur? Occasionally (10% - 49%)
Steps: How can we find the bug ourselves? Import cars over from NFS Heat Studio
What happens when the bug occurs? Stock Visual parts cannot be equipped individually and needs to be reset as a whole. affected cars cannot be sold
What do you expect to see? Stock parts should already be owned and cars should be sold.

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the issue happens when importing visuals from Studio app 

@yourbigfatfriend Thank you for the detailed report. I can see a few PSN IDs attached to your account, can you confirm that the one you're using starts with "Onyx"? 

It's happening to me as well. Trying to sell an Infiniti Q60 S.

Has anyone had issues selling cars? I keep getting a “sell failed” message on cars that I don’t want and cars I previously sold are back in my garage. Any suggestions?

do it in offline mode. online mode tend to fail sometimes. it happened to me. in XBbox restarted the game and switched to offline mode. then sync it in when connected online.