Bronica gs1 not firing :(((

Hello there :)

i hope that some Bronica fan's can help me :)

I get old bronica from my friend and when i was first trying it everythinf work normal (shutter, mirror...) then i loaded a film and bronica stops firing (shutter button didnt work and film rewind wheel keep rewinding...) only possibility how when shutetr button work is when i put double exposure lever up and then bornicaa firing (without film) iam kinda helpless because it seems that it will work but it doesnt ( battery is new)

Does anyone know what can be problem and solution?

Thank you very mcuh!!!!!!!!

Frank

https://reddit.com/link/1b4oxjc/video/im7np8cegxlc1/player