[Gretl-users] Session objects not saved

Dear professors, I'm using gretl2019a_git on windows 7 (64bit). I usually save sessions with models to keep track of all the regressions made. I have 1 session saved with 10 OLS regressions and everything is ok. I also have another session with 10 Fixed Effects regressions, which, when opening such session, gives me the following error: "10 session object(s) could not be rebuilt" I've also tried to save OLS and FE regressions in the same session and it rebuilds OLS' but not FE's. The same problem occurred with gretl2018d. Hope you can help me. Thanks, Marcelo