@theratears
I use "Balance by Exchange" and make sure everything matches there.
If not then I at least know to look at the transactions of the specific exchanges where it doesn't match.

And for running totals you can use "Daily Balance".
You can set it to "Daily" and then see how many coins per cryptocurrency you had each day (the third number per entry).
This way you can see when your total amount of a specific cryptocurrency started not matching.