Can legacy widgets cause thingworx mashup to crash?

Hi all,

Does anyone know if using legacy widgets could cause mashup performance issues or crashing? I have an old mashup that hasn't had its legacy widgets migrated fully that continues to crash randomly. Would this be a possible reason for crashing, with this message below? The only reason I haven't migrated is because this mashup visually gets changed significantly from the legacy widgets to new implementations, but I can't seem to narrow a separate reason that the crashing occurs and don't have the issue on any other similar mashups with new widgets. Thanks for any input!