Hi @ematz and welcome!
Thank you for the details about CuPID.
About the TLE sets, CuPID’s orbit is described from one of the following (source space-track.org):
0 TBA - TO BE ASSIGNED
1 49261U 21088B 21271.93862092 .00004000 00000-0 32217-3 0 9995
2 49261 97.6253 339.9480 0022102 249.0096 110.8769 15.00318609 161
0 TBA - TO BE ASSIGNED
1 49262U 21088C 21271.93862092 -.00008855 00000-0 -69621-3 0 9999
2 49262 97.6215 339.9481 0021940 248.2474 112.3009 15.00476349 161
0 TBA - TO BE ASSIGNED
1 49263U 21088D 21271.93774192 -.00005522 00000-0 -42110-3 0 9995
2 49263 97.6240 339.9472 0017328 244.9374 115.0011 15.01538841 167
0 TBA - TO BE ASSIGNED
1 49264U 21088E 21271.87104219 -.00010846 00000-0 -83052-3 0 9991
2 49264 97.6227 339.8824 0016098 252.5125 107.4340 15.01631683 152
Currently all of them are close enough, so for reception any of them should work for now. Also our findings is that 49263 is CUTE, so the other three are good candidates. Depending on the angle of your transmission beam, trying all these TLE sets interchangeably would be a good strategy.
As @K4KDR said, knowing the timestamp of your transmissions and the TLE that you follow will be very helpful for us to organize the observations of our stations and have better chance to receive it.