In your Feelthere Embraer ERJ-135 aircraft.cfg files, locate and change the existing [exit] sections to this...
[exits]
number_of_exits=2
exit.0 = 0.4, 23.93, -5.50, 5.00, 0
exit.1 = 0.4, -23.11, 3.60, 2.10, 1
This will make the jetway connect to the aircraft correctly.
Below is the coordinates that align GSX with Feelthere's Embraer ERJ-135 aircraft. Just input these coordinates into the aircraft settings in GSX. If you have any issues or find better coordinates, please post them in the comments. Thank you.
-----Feelthere Embraer ERJ 135-----
Nosegear
Distance 9.50
PAX1
Door with open/close checks as FSX Door #1
Name Main Exit
Position -1.00 7.08 1.90
Angle 0.00
PAX2
No Door
PAX3
No Door
PAX4
No Door
Service1
No Door
Service2
No Door
Cargo1
No Door
Cargo2
Door with open/close checks as FSX Door #2
Name Cargo Door
Position -0.90 -7.10 2.00
Angle -10.00
ULD Code Belt
Engine #1
Position -2.12 -5.94 3.46
Engine #2
Position 2.12 -5.94 3.46
Deicer In
Position 3.00 -1.44 2.06
Deicer Out
Position 9.26 -3.90 2.30
Refueling Point
Position 1.00 1.50 1.32
https://steamuserimages-a.akamaihd.net/ugc/847091616883184120/DC29C22C4B222851105D8392C1B19624E791A8E7/