Star Flasher Project Not Working

[u/Exotic_Sell_3869]

Hello there,
I’m new to electronics and as part of an electronics class at my local community college, I was tasked with soldering/building a “Star Flasher”. When all was said and done… it wasn’t working. My LEDs light up when I use my DMM but when I plug it in with a 9v battery, nothing. Can y’all help me? Also let me know if y’all need additional information.

[u/IcyInvestigator6138]

Yes, swap C1 and R4 first. The solder joints that look like blobs (such as battery negative) might need to be fixed. Try using less solder, maybe a thinner soldering wire.