back to old os or contnue update od

Apr 20, 2018
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Mother board G41T-M16, graphic card Radeon HD5450, Monitor LG Full HDTV M2341A, operating system Windows 10 Insider Preview Version 1803, PC to monitor connected with HDMI cable. Problem: no sound of headset and surround speaker which connected through line out of the motherboard. Previously is no problem before updated to current OS. The outside speaker and head set already had been check to other Lap Top it is no problem. Should I reverse back to the old OS, or just wait for another update from W10 ? Help me for solution.Thanks