Back again! This is GPX-TF8A-2553 (GSC 03691-00046 in Perseus), a nice ELL with a very small variation discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini.
Magnitude variation goes from 13.46 to 13.48 V
Epoch: HJD 2457669.712
Period: 0.328805 d
This is the link to VSX record: https://www.aavso.org/vsx/index.php?view=detail.top&oid=844347