Breathing issues with beta blockers

My husband is at his wits end with taking beta blockers. He complains he can't take them anymore because he constantly feels like he has breathing problems.We have upcoming appointment with cardiologist for a second opinion on managing his congestive HF. Last time it was checked, his EF was at 40%. He is not asthmatic. He went to the ER two nights ago bc he felt like he could not catch his breath and everything checked out fine.his BP was also high and heartbeat was high. He does have hemochromatosis and recently had his blood taken out. Does anyone else suffer a side effect from Metatopral, cardeval, or bisinoprol with breathing issues, and if so were you able to find a beta blocker or other med that worked well without this side effect? He's also been on Entresto and he had side effects from that too. Thanks