Wrong filename in audiomontage

Hello WL-support,

I made an audiomontage with WL 8.5 with just one song (wav-file), inserted some FX and saved it after mastering.
Today I opened the montage again and tried to exchange the audiofile with another one.

After the exchange with right-click WL plays the new audiofile but does not show the new filename.

The small red box in the file (at the bottom) shows the name of the old file and in the category “Clips” I can find the old filename, too.

This happenes sometimes when working with WL but I cannot find a workaround.