fix: [thumbnail] picture preview was not showing up all the time
fix: [thumbnail] picture preview was not showing up all the time

MISP/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,FIRSTdotorg/MISP,SteveClement/MISP,FIRSTdotorg/MISP,SteveClement/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,MISP/MISP,FloatingGhost/MISP,SteveClement/MISP,MISP/MISP,FloatingGhost/MISP,FloatingGhost/MISP,SteveClement/MISP,FIRSTdotorg/MISP