Это вектор vector.xml в векторе, некоторые значки имеют небольшую высоту и ширину, измените их здесь:
<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="508.551dp" // change here
android:height="508.551dp" // change here
android:viewportWidth="508.551"
android:viewportHeight="508.551">
<path
android:fillColor="#a9a9a9"
android:pathData="M413.967,254.228l-3.973,0.032c2.066-10.456,3.178-21.135,3.178-31.782 c0-87.624-71.288-158.912-158.912-158.912c-87.561,0-158.912,70.589-159.008,157.292l0.254,3.21 C41.063,231.885,0,278.955,0,333.748c0,55.492,39.982,103.229,95.347,111.239h79.456c8.772,0,15.891-7.151,15.891-15.891 s-7.119-15.891-15.891-15.891l-77.136,0.159c-36.931-5.435-65.885-40.427-65.885-79.615c0-39.061,29.303-72.623,68.205-78.185 l13.666-1.971c7.818-1.112,13.635-7.818,13.635-15.732l-0.254-16.908c0.095-69.286,57.145-125.604,127.225-125.604 c70.112,0,127.13,57.018,127.13,127.13c0,8.613-0.858,17.29-2.606,25.712l-4.195,20.214c-1.049,5.053,0.445,10.266,3.941,14.048 c3.464,3.75,8.518,5.689,13.73,4.895c0.381-0.032,10.298-1.335,21.739-1.335c34.643,0,62.77,28.509,62.77,63.597 s-28.477,63.565-63.565,63.565H301.965c-44.495,0-47.515-26.665-47.674-31.783V275.935l37.63,37.599 c6.166,6.134,16.273,6.134,22.47,0c6.166-6.198,6.166-16.336,0-22.47l-63.978-63.946c-3.115-3.115-7.215-4.64-11.315-4.64 l-0.699-0.127c-4.577,0-8.613,1.971-11.505,5.053l-64.01,63.946c-6.198,6.166-6.198,16.304,0,22.47 c6.198,6.166,16.273,6.166,22.47,0l37.154-37.122V381.39c0,21.962,16.59,63.565,79.456,63.565h111.239 c52.568,0,95.347-42.779,95.347-95.347S466.122,254.228,413.967,254.228z" />
</vector>
В каждом векторном файле используйте одинаковую ширину и высоту в окне навигации