temperatures of hot spot and bright spot during the long cycle, and also in the position of the bright spot. This, along with the changes in disk radius might indicate a variable mass transfer in this system. ]{}

Introduction
============

Double Periodic Variables (DPVs) are a subset of Algol-type binary systems. They consist of a red giant that has filled its Roche lobe and transfers material through an optically thick accretion disk onto a B-type dwarf. Its main characteristic is that they have two photometric cycles: a short period P$_{\rm o}$, whose light curve shape is typical of the orbital modulation in eclipsing or ellipsoidal binaries and a long cycle period P$_{\rm l}$, whose origin is still unknown. Both periodicities are related through the relationship P$_{\rm l}$ = 33 $\times$ P$_{\rm o}$, but the period ratio for a particular case can differ considerably from the average [@Mennickent2003; @2010AcA....60..179P; @Pawlak2013; @Mennickent2016; @Mennickent2017]. In some systems, a decrease in the long period has been reported, as in the case of OGLE-LMC-DPV-065 [@2010AcA....60..179P; @2019MNRAS.487.4169M] and OGLE-LMC-DPV-056 [@Mennickent2008].

A magnetic origin has been proposed as the cause of the long cycle . The rapid rotation of an orbitally synchronized donor star, added to the 