15.1.0.023 crash hoving over still thumbnail.

Using Resolve Studio 15.1.0.023 on Windows 10 build 17758:
1. Created timeline with two 8k clips copied from another timeline
2. On the Color tab, disabled a portion of the grade on each of the clips (same nodes on both clips)
3. On the Edit tab create a Compound clip comprising the two clips
4. Go to Color tab
5. Hover mouse over one of the existing stills in the gallery
Result: Resolve crashes instantly with no error message or save
Expect: be able to apply a grade to the compound clip and then edit it, or at least not crash
resolve crash log: https://drive.google.com/open?id=1YTIWj ... TEWW4YENwt
system info: https://drive.google.com/open?id=1SP_2r ... 279qXrS5FK
1. Created timeline with two 8k clips copied from another timeline
2. On the Color tab, disabled a portion of the grade on each of the clips (same nodes on both clips)
3. On the Edit tab create a Compound clip comprising the two clips
4. Go to Color tab
5. Hover mouse over one of the existing stills in the gallery
Result: Resolve crashes instantly with no error message or save
Expect: be able to apply a grade to the compound clip and then edit it, or at least not crash
resolve crash log: https://drive.google.com/open?id=1YTIWj ... TEWW4YENwt
system info: https://drive.google.com/open?id=1SP_2r ... 279qXrS5FK