Instant decay and yellowing of leaves are the most common issues found with Aglaonemas. The presence of excess water in the soil which results in fungal infection is the main reason for this. Hence, always remember NOT to water the plant daily or excessively. This would gradually result in the decay of roots and leaves. Some unknowingly tend to water the plant along with watering other plants. To avoid this, you may group and keep your Aglaonema collection in one place.  Fungal infection on the leaves is another issue faced. For this, you may apply any organic or chemical fungicides and save your plant. In addition, some complain about the absence of any budding baby plants or new leaves. This happens due to the hardness of your potting mix. Always make sure that your potting mix is loose enough.