at 3240 pc. The above indicates that the systems is not a member of the Galactic bulge, but a foreground star.

We used good time coverage in OGLE data to study changes in the morphology of the light curve. It occurred that they are, similarly to OGLE-LMC-DPV-097, related to the long cycle. Our motivation is to investigate the physical phenomena that give rise to the peculiar changes observed in its orbital light curve, in order to understand the cause of these changes. This object, together with other DPVs that show linked orbital and long cycle variability, could be fundamental in a study aimed to understand the DPV phenomenon and test the hypothesis of the magnetic dynamo. A preliminary report of this investigation was presented by @2019CoSka..49..355G.

Photometric Data
================

This object is included in the catalogue of eclipsing binaries in the Galactic bulge presented by [@Soszynski2016]. The photometric time series analyzed in this study consists of 2606 $I$-band data points taken from the following data bases (Fig.1): OGLE-II [@2005AcA....55...43S][^1] and OGLE-III/IV[^2]. The OGLE-IV project is described by @2015AcA....65....1U. In addition, the OGLE-IV data base provides 118 additional $V$-band measurements. The whole dataset, summarized in Table1, spans a time interval of 