Two identical copies of Projeqtor but different results !

I'm working on a lot of adaptations on Projeqtor on my pêrsonal PC, and yesterday I installed an exact copy on the server in my company, following theses steps :

1. Installed Projeqtor 4.3.2 as new.
2. Ensure all is O.K.
3. Replaced data with real data running pure sql import from export (tables were dropped and re-created then filled) via phpmyadmin. As i I restored with a safeguard.
4. Without renetering in Projeqtor, replaced Projeqtor modules with customized ones.
5. Ensure all seems O.K.
… but a strange thing occurs : when displaying a client, no projet nor any contacts appear (on my PC, they display O.K.)
Verifying in contacts and project, links are there.
When pop-up on client from one of its contacts, the whole data are displayed, including project and contacts.
All authorizations and owner on files are O.K.

Normally, the two installations are exact copies from one to the other. Even the OS is almost identical (Ubuntu 14.04 on server, Linux Mint 17 – based on Ubuntu 14.04 – on mine), including php, mysql, etc. versions.

As my personal work place and my company place are at 50 km one from other and no remote access on the server is possible (for security reasons), I can’t give more infos.
I didn’t investigate yesterday because I thought that could be an unseen error in an adaptation from last days. But obviously it is not the case.

Copying as I did could give some differences in operating ?

All is UTF-8.
The two computers have been entirely mounted by myself (including physical assembly of physical components with screwdriver ) and installed with a Linux 2014 version.
UTF-8 has naturally been defaulted everywhere. It's Linux, not Windows !

Data have been exported from UTF-8 mysql base to antother UTF-8 mysql base via an UTF-8 text file.
All data displayed are totally O.K. on any screen (included characters beyond U0x2000 in some notes ! )

The only problem is that some linked data (by internal numeric reference, so anyway UTF8 has no role) are ignored on main display. Something do as if they were not found. But only on normal display. On pop-up display for client via magnifier button from elsewhere (p.e. contact), all data come well.

Amazing, no ?

The only error was after copying customized files : database user was wrong (name and pw not identical on my PC and the server), but after change all ran perfect… except the reason of this topic.

Have a look on log is a good idea.
Unfortunately I’m not on site today nor tomorrow, and nobody there has technical competences to access log files. It seems that I have to wait until my next pass in agency. Next week, thus…

As said in topic « Error in log since migrated to V4.4 », the problem has vanished with upgrade from V4.3.2 to V4.4!